Contents
Introduction
MATLAB® and !NumPy/!SciPy have a lot in common. But there are many differences. NumPy and SciPy were created to do numerical and scientific computing in the most natural way with Python, not to be MATLAB® clones. This page is intended to be a place to collect wisdom about the differences, mostly for the purpose of helping proficient MATLAB® users become proficient NumPy and SciPy users. NumPyProConPage is another page for curious people who are thinking of adopting Python with NumPy and SciPy instead of MATLAB® and want to see a list of pros and cons.
Some Key Differences
In MATLAB®, the basic data type is a multidimensional array of double precision floating point numbers. Most expressions take such arrays and return such arrays. Operations on the 2D instances of these arrays are designed to act more or less like matrix operations in linear algebra. 
In NumPy the basic type is a multidimensional array. Operations on these arrays in all dimensionalities including 2D are elementwise operations. However, there is a special matrix type for doing linear algebra, which is just a subclass of the array class. Operations on matrixclass arrays are linear algebra operations. 
MATLAB® uses 1 (one) based indexing. The initial element of a sequence is found using a(1). See note 'INDEXING' 
Python uses 0 (zero) based indexing. The initial element of a sequence is found using a[0]. 
MATLAB®'s scripting language was created for doing linear algebra. The syntax for basic matrix operations is nice and clean, but the API for adding GUIs and making fullfledged applications is more or less an afterthought. 
NumPy is based on Python, which was designed from the outset to be an excellent generalpurpose programming language. While Matlab's syntax for some array manipulations is more compact than NumPy's, NumPy (by virtue of being an addon to Python) can do many things that Matlab just cannot, for instance subclassing the main array type to do both array and matrix math cleanly. 
In MATLAB®, arrays have passbyvalue semantics, with a lazy copyonwrite scheme to prevent actually creating copies until they are actually needed. Slice operations copy parts of the array. 
In NumPy arrays have passbyreference semantics. Slice operations are views into an array. 
In MATLAB®, every function must be in a file of the same name, and you can't define local functions in an ordinary script file or at the commandprompt (inlines are not real functions but macros, like in C). 
NumPy code is Python code, so it has no such restrictions. You can define functions wherever you like. 
MATLAB® has an active community and there is lots of code available for free. But the vitality of the community is limited by MATLAB®'s cost; your MATLAB® programs can be run by only a few. 
!NumPy/!SciPy also has an active community, based right here on this web site! It is smaller, but it is growing very quickly. In contrast, Python programs can be redistributed and used freely. See Topical_Software for a listing of free addon application software, Mailing_Lists for discussions, and the rest of this web site for additional community contributions. We encourage your participation! 
MATLAB® has an extensive set of optional, domainspecific addons ('toolboxes') available for purchase, such as for signal processing, optimization, control systems, and the whole SimuLink® system for graphically creating dynamical system models. 
There's no direct equivalent of this in the free software world currently, in terms of range and depth of the addons. However the list in Topical_Software certainly shows a growing trend in that direction. 
MATLAB® has a sophisticated 2d and 3d plotting system, with user interface widgets. 
Addon software can be used with Numpy to make comparable plots to MATLAB®. Matplotlib is a mature 2d plotting library that emulates the MATLAB® interface. PyQwt allows more robust and faster user interfaces than MATLAB®. And mlab, a "matlablike" API based on Mayavi2, for 3D plotting of Numpy arrays. See the Topical_Software page for more options, links, and details. There is, however, no definitive, allinone, easytouse, builtin plotting solution for 2d and 3d. This is an area where Numpy/Scipy could use some work. 
MATLAB® provides a full development environment with command interaction window, integrated editor, and debugger. 
Numpy does not have one standard IDE. However, the IPython environment provides a sophisticated command prompt with full completion, help, and debugging support, and interfaces with the Matplotlib library for plotting and the Emacs/XEmacs editors. 
MATLAB® itself costs thousands of dollars if you're not a student. The source code to the main package is not available to ordinary users. You can neither isolate nor fix bugs and performance issues yourself, nor can you directly influence the direction of future development. (If you are really set on Matlablike syntax, however, there is Octave, another numerical computing environment that allows the use of most Matlab syntax without modification.) 
NumPy and SciPy are free (both beer and speech), whoever you are. 
'array' or 'matrix'? Which should I use?
Short answer
Use arrays.
 They are the standard vector/matrix/tensor type of numpy. Many numpy function return arrays, not matrices.
 There is a clear distinction between elementwise operations and linear algebra operations.
 You can have standard vectors or row/column vectors if you like.
The only disadvantage of using the array type is that you will have to use dot instead of * to multiply (reduce) two tensors (scalar product, matrix vector multiplication etc.).
Long answer
Numpy contains both an array class and a matrix class. The array class is intended to be a generalpurpose ndimensional array for many kinds of numerical computing, while matrix is intended to facilitate linear algebra computations specifically. In practice there are only a handful of key differences between the two.
Operator *, dot(), and multiply():
For array, '*' means elementwise multiplication, and the dot() function is used for matrix multiplication.
For matrix, '*' means matrix multiplication, and the multiply() function is used for elementwise multiplication.
 Handling of vectors (rank1 arrays)
For array, the vector shapes 1xN, Nx1, and N are all different things. Operations like A[:,1] return a rank1 array of shape N, not a rank2 of shape Nx1. Transpose on a rank1 array does nothing.
For matrix, rank1 arrays are always upconverted to 1xN or Nx1 matrices (row or column vectors). A[:,1] returns a rank2 matrix of shape Nx1.
Handling of higherrank arrays (rank > 2)
array objects can have rank > 2.
matrix objects always have exactly rank 2.
 Convenience attributes
array has a .T attribute, which returns the transpose of the data.
matrix also has .H, .I, and .A attributes, which return the conjugate transpose, inverse, and asarray() of the matrix, respectively.
 Convenience constructor
The array constructor takes (nested) Python sequences as initializers. As in, array([[1,2,3],[4,5,6]]).
The matrix constructor additionally takes a convenient string initializer. As in matrix("[1 2 3; 4 5 6]").
There are pros and cons to using both:
array
You can treat rank1 arrays as either row or column vectors. dot(A,v) treats v as a column vector, while dot(v,A) treats v as a row vector. This can save you having to type a lot of transposes.
Having to use the dot() function for matrixmultiply is messy  dot(dot(A,B),C) vs. A*B*C.
Elementwise multiplication is easy: A*B.
array is the "default" NumPy type, so it gets the most testing, and is the type most likely to be returned by 3rd party code that uses NumPy.
Is quite at home handling data of any rank.
Closer in semantics to tensor algebra, if you are familiar with that.
All operations (*, /, +, ** etc.) are elementwise
matrix
Behavior is more like that of MATLAB® matrices.
Maximum of rank2. To hold rank3 data you need array or perhaps a Python list of matrix.
Minimum of rank2. You cannot have vectors. They must be cast as singlecolumn or singlerow matrices.
Since array is the default in NumPy, some functions may return an array even if you give them a matrix as an argument. This shouldn't happen with NumPy functions (if it does it's a bug), but 3rd party code based on NumPy may not honor type preservation like NumPy does.
A*B is matrix multiplication, so more convenient for linear algebra.
Elementwise multiplication requires calling a function, multipy(A,B).
The use of operator overloading is a bit illogical: * does not work elementwise but / does.
The array is thus much more advisable to use, but in the end, you don't really have to choose one or the other. You can mixandmatch. You can use array for the bulk of your code, and switch over to matrix in the sections where you have nittygritty linear algebra with lots of matrixmatrix multiplications.
Facilities for Matrix Users
Numpy has some features that facilitate the use of the matrix type, which hopefully make things easier for Matlab converts.
A matlib module has been added that contains matrix versions of common array constructors like ones(), zeros(), empty(), eye(), rand(), repmat(), etc. Normally these functions return arrays, but the matlib versions return matrix objects.
mat has been changed to be a synonym for asmatrix, rather than matrix, thus making it concise way to convert an array to a matrix without copying the data.
Some toplevel functions have been removed. For example numpy.rand() now needs to be accessed as numpy.random.rand(). Or use the rand() from the matlib module. But the "numpythonic" way is to use numpy.random.random(), which takes a tuple for the shape, like other numpy functions.
Table of Rough MATLABNumPy Equivalents
The table below gives rough equivalents for some common MATLAB® expressions. These are not exact equivalents, but rather should be taken as hints to get you going in the right direction. For more detail read the builtin documentation on the NumPy functions.
Some care is necessary when writing functions that take arrays or matrices as arguments  if you are expecting an array and are given a matrix, or vice versa, then '*' (multiplication) will give you unexpected results. You can convert back and forth between arrays and matrices using
asarray: always returns an object of type array
asmatrix or mat: always return an object of type matrix
asanyarray: always returns an array object or a subclass derived from it, depending on the input. For instance if you pass in a matrix it returns a matrix.
These functions all accept both arrays and matrices (among other things like Python lists), and thus are useful when writing functions that should accept any arraylike object.
In the table below, it is assumed that you have executed the following commands in Python:
from numpy import *
import scipy as Sci
import scipy.linalg
Also assume below that if the Notes talk about "matrix" that the arguments are rank 2 entities.
THIS IS AN EVOLVING WIKI DOCUMENT. If you find an error, or can fill in an empty box, please fix it! If there's something you'd like to see added, just add it.
General Purpose Equivalents
MATLAB 
numpy 
Notes 

help func 
info(func) or help(func) or func? (in Ipython) 
get help on the function func 

which func 
find out where func is defined 

type func 
source(func) or func?? (in Ipython) 
print source for func (if not a native function) 

a && b 
a and b 
shortcircuiting logical AND operator (Python native operator); scalar arguments only 

a  b 
a or b 
shortcircuiting logical OR operator (Python native operator); scalar arguments only 

1*i,1*j,1i,1j 
1j 
complex numbers 

eps 
spacing(1) 
Distance between 1 and the nearest floating point number 

ode45 
scipy.integrate.ode(f).set_integrator('dopri5') 
integrate an ODE with RungeKutta 4,5 

ode15s 
scipy.integrate.ode(f).\ 
integrate an ODE with BDF 
Linear Algebra Equivalents
The notation mat(...) means to use the same expression as array, but convert to matrix with the mat() type converter.
The notation asarray(...) means to use the same expression as matrix, but convert to array with the asarray() type converter.
MATLAB 
numpy.array 
numpy.matrix 
Notes 
ndims(a) 
ndim(a) or a.ndim 
get the number of dimensions of a (tensor rank) 

numel(a) 
size(a) or a.size 
get the number of elements of an array 

size(a) 
shape(a) or a.shape 
get the "size" of the matrix 

size(a,n) 
a.shape[n1] 
get the number of elements of the nth dimension of array a. (Note that MATLAB® uses 1 based indexing while Python uses 0 based indexing, See note 'INDEXING') 

[ 1 2 3; 4 5 6 ] 
array([[1.,2.,3.], 
mat([[1.,2.,3.], 
2x3 matrix literal 
[ a b; c d ] 
vstack([hstack([a,b]), 
bmat('a b; c d') 
construct a matrix from blocks a,b,c, and d 
a(end) 
a[1] 
a[:,1][0,0] 
access last element in the 1xn matrix a 
a(2,5) 
a[1,4] 
access element in second row, fifth column 

a(2,:) 
a[1] or a[1,:] 
entire second row of a 

a(1:5,:) 
a[0:5] or a[:5] or a[0:5,:] 
the first five rows of a 

a(end4:end,:) 
a[5:] 
the last five rows of a 

a(1:3,5:9) 
a[0:3][:,4:9] 
rows one to three and columns five to nine of a. This gives readonly access. 

a([2,4,5],[1,3]) 
a[ix_([1,3,4],[0,2])] 
rows 2,4 and 5 and columns 1 and 3. This allows the matrix to be modified, and doesn't require a regular slice. 

a(3:2:21,:) 
a[ 2:21:2,:] 
every other row of a, starting with the third and going to the twentyfirst 

a(1:2:end,:) 
a[ ::2,:] 
every other row of a, starting with the first 

a(end:1:1,:) or flipud(a) 
a[ ::1,:] 
a with rows in reverse order 

a([1:end 1],:) 
a[r_[:len(a),0]] 
a with copy of the first row appended to the end 

a.' 
a.transpose() or a.T 
transpose of a 

a' 
a.conj().transpose() or a.conj().T 
a.H 
conjugate transpose of a 
a * b 
dot(a,b) 
a * b 
matrix multiply 
a .* b 
a * b 
multiply(a,b) 
elementwise multiply 
a./b 
a/b 
elementwise divide 

a.^3 
a**3 
power(a,3) 
elementwise exponentiation 
(a>0.5) 
(a>0.5) 
matrix whose i,jth element is (a_ij > 0.5) 

find(a>0.5) 
nonzero(a>0.5) 
find the indices where (a > 0.5) 

a(:,find(v>0.5)) 
a[:,nonzero(v>0.5)[0]] 
a[:,nonzero(v.A>0.5)[0]] 
extract the columms of a where vector v > 0.5 
a(:,find(v>0.5)) 
a[:,v.T>0.5] 
a[:,v.T>0.5)] 
extract the columms of a where column vector v > 0.5 
a(a<0.5)=0 
a[a<0.5]=0 
a with elements less than 0.5 zeroed out 

a .* (a>0.5) 
a * (a>0.5) 
mat(a.A * (a>0.5).A) 
a with elements less than 0.5 zeroed out 
a(:) = 3 
a[:] = 3 
set all values to the same scalar value 

y=x 
y = x.copy() 
numpy assigns by reference 

y=x(2,:) 
y = x[1,:].copy() 
numpy slices are by reference 

y=x(:) 
y = x.flatten(1) 
turn array into vector (note that this forces a copy) 

1:10 
arange(1.,11.) or 
mat(arange(1.,11.)) or 
create an increasing vector see note 'RANGES' 
0:9 
arange(10.) or 
mat(arange(10.)) or 
create an increasing vector see note 'RANGES' 
[1:10]' 
arange(1.,11.)[:, newaxis] 
r_[1.:11.,'c'] 
create a column vector 
zeros(3,4) 
zeros((3,4)) 
mat(...) 
3x4 rank2 array full of 64bit floating point zeros 
zeros(3,4,5) 
zeros((3,4,5)) 
mat(...) 
3x4x5 rank3 array full of 64bit floating point zeros 
ones(3,4) 
ones((3,4)) 
mat(...) 
3x4 rank2 array full of 64bit floating point ones 
eye(3) 
eye(3) 
mat(...) 
3x3 identity matrix 
diag(a) 
diag(a) 
mat(...) 
vector of diagonal elements of a 
diag(a,0) 
diag(a,0) 
mat(...) 
square diagonal matrix whose nonzero values are the elements of a 
rand(3,4) 
random.rand(3,4) 
mat(...) 
random 3x4 matrix 
linspace(1,3,4) 
linspace(1,3,4) 
mat(...) 
4 equally spaced samples between 1 and 3, inclusive 
[x,y]=meshgrid(0:8,0:5) 
mgrid[0:9.,0:6.] or 
mat(...) 
two 2D arrays: one of x values, the other of y values 

ogrid[0:9.,0:6.] or 
mat(...) 
the best way to eval functions on a grid 
[x,y]=meshgrid([1,2,4],[2,4,5]) 
meshgrid([1,2,4],[2,4,5]) 
mat(...) 


ix_([1,2,4],[2,4,5]) 
mat(...) 
the best way to eval functions on a grid 
repmat(a, m, n) 
tile(a, (m, n)) 
mat(...) 
create m by n copies of a 
[a b] 
concatenate((a,b),1) or 
concatenate((a,b),1) 
concatenate columns of a and b 
[a; b] 
concatenate((a,b)) or 
concatenate((a,b)) 
concatenate rows of a and b 
max(max(a)) 
a.max() 
maximum element of a (with ndims(a)<=2 for matlab) 

max(a) 
a.max(0) 
maximum element of each column of matrix a 

max(a,[],2) 
a.max(1) 
maximum element of each row of matrix a 

max(a,b) 
maximum(a, b) 
compares a and b elementwise, and returns the maximum value from each pair 

norm(v) 
sqrt(dot(v,v)) or 
sqrt(dot(v.A,v.A)) or 
L2 norm of vector v 
a & b 
logical_and(a,b) 
elementbyelement AND operator (Numpy ufunc) see note 'LOGICOPS' 

a  b 
logical_or(a,b) 
elementbyelement OR operator (Numpy ufunc) see note 'LOGICOPS' 

bitand(a,b) 
a & b 
bitwise AND operator (Python native and Numpy ufunc) 

bitor(a,b) 
a  b 
bitwise OR operator (Python native and Numpy ufunc) 

inv(a) 
linalg.inv(a) 
inverse of square matrix a 

pinv(a) 
linalg.pinv(a) 
pseudoinverse of matrix a 

rank(a) 
linalg.matrix_rank(a) 
rank of a matrix a 

a\b 
linalg.solve(a,b) if a is square 
solution of a x = b for x 

b/a 
Solve a.T x.T = b.T instead 
solution of x a = b for x 

[U,S,V]=svd(a) 
U, S, Vh = linalg.svd(a), V = Vh.T 
singular value decomposition of a 

chol(a) 
linalg.cholesky(a).T 
cholesky factorization of a matrix (chol(a) in matlab returns an upper triangular matrix, but linalg.cholesky(a) returns a lower triangular matrix) 

[V,D]=eig(a) 
D,V = linalg.eig(a) 
eigenvalues and eigenvectors of a 

[V,D]=eig(a,b) 
V,D = Sci.linalg.eig(a,b) 
eigenvalues and eigenvectors of a,b 

[V,D]=eigs(a,k) 


find the k largest eigenvalues and eigenvectors of a 
[Q,R,P]=qr(a,0) 
Q,R = Sci.linalg.qr(a) 
mat(...) 
QR decomposition 
[L,U,P]=lu(a) 
L,U = Sci.linalg.lu(a) or 
mat(...) 
LU decomposition (note: P(Matlab) == transpose(P(numpy)) ) 
conjgrad 
Sci.linalg.cg 
mat(...) 
Conjugate gradients solver 
fft(a) 
fft(a) 
mat(...) 
Fourier transform of a 
ifft(a) 
ifft(a) 
mat(...) 
inverse Fourier transform of a 
sort(a) 
sort(a) or a.sort() 
mat(...) 
sort the matrix 
[b,I] = sortrows(a,i) 
I = argsort(a[:,i]), b=a[I,:] 
sort the rows of the matrix 

regress(y,X) 
linalg.lstsq(X,y) 
multilinear regression 

decimate(x, q) 
Sci.signal.resample(x, len(x)/q) 
downsample with lowpass filtering 

unique(a) 
unique(a) 


squeeze(a) 
a.squeeze() 


Notes
Submatrix: Assignment to a submatrix can be done with lists of indexes using the ix_ command. E.g., for 2d array a, one might do: ind=[1,3]; a[np.ix_(ind,ind)]+=100.
HELP: There is no direct equivalent of MATLAB's which command, but the commands help and source will usually list the filename where the function is located. Python also has an inspect module (do import inspect) which provides a getfile that often works.
INDEXING: MATLAB® uses one based indexing, so the initial element of a sequence has index 1. Python uses zero based indexing, so the initial element of a sequence has index 0. Confusion and flamewars arise because each has advantages and disadvantages. One based indexing is consistent with common human language usage, where the "first" element of a sequence has index 1. Zero based indexing simplifies indexing. See also a text by prof.dr. Edsger W. Dijkstra.
RANGES: In MATLAB®, 0:5 can be used as both a range literal and a 'slice' index (inside parentheses); however, in Python, constructs like 0:5 can only be used as a slice index (inside square brackets). Thus the somewhat quirky r_ object was created to allow numpy to have a similarly terse range construction mechanism. Note that r_ is not called like a function or a constructor, but rather indexed using square brackets, which allows the use of Python's slice syntax in the arguments.
LOGICOPS: & or  in Numpy is bitwise AND/OR, while in Matlab & and  are logical AND/OR. The difference should be clear to anyone with significant programming experience. The two can appear to work the same, but there are important differences. If you would have used Matlab's & or  operators, you should use the Numpy ufuncs logical_and/logical_or. The notable differences between Matlab's and Numpy's & and  operators are:
Nonlogical {0,1} inputs: Numpy's output is the bitwise AND of the inputs. Matlab treats any nonzero value as 1 and returns the logical AND. For example (3 & 4) in Numpy is 0, while in Matlab both 3 and 4 are considered logical true and (3 & 4) returns 1.
Precedence: Numpy's & operator is higher precedence than logical operators like < and >; Matlab's is the reverse.
If you know you have boolean arguments, you can get away with using Numpy's bitwise operators, but be careful with parentheses, like this: z = (x > 1) & (x < 2). The absence of Numpy operator forms of logical_and and logical_or is an unfortunate consequence of Python's design.
RESHAPE and LINEAR INDEXING: Matlab always allows multidimensional arrays to be accessed using scalar or linear indices, Numpy does not. Linear indices are common in Matlab programs, e.g. find() on a matrix returns them, whereas Numpy's find behaves differently. When converting Matlab code it might be necessary to first reshape a matrix to a linear sequence, perform some indexing operations and then reshape back. As reshape (usually) produces views onto the same storage, it should be possible to do this fairly efficiently. Note that the scan order used by reshape in Numpy defaults to the 'C' order, whereas Matlab uses the Fortran order. If you are simply converting to a linear sequence and back this doesn't matter. But if you are converting reshapes from Matlab code which relies on the scan order, then this Matlab code: z = reshape(x,3,4); should become z = x.reshape(3,4,order='F').copy() in Numpy.
Customizing Your Environment
In MATLAB® the main tool available to you for customizing the environment is to modify the search path with the locations of your favorite functions. You can put such customizations into a startup script that MATLAB will run on startup.
NumPy, or rather Python, has similar facilities.
To modify your Python search path to include the locations of your own modules, define the PYTHONPATH environment variable.
To have a particular script file executed when the interactive Python interpreter is started, define the PYTHONSTARTUP environment variable to contain the name of your startup script.
Unlike MATLAB®, where anything on your path can be called immediately, with Python you need to first do an 'import' statement to make functions in a particular file accessible.
For example you might make a startup script that looks like this (Note: this is just an example, not a statement of "best practices"):
# Make all numpy available via shorter 'num' prefix
import numpy as num
# Make all matlib functions accessible at the top level via M.func()
import numpy.matlib as M
# Make some matlib functions accessible directly at the top level via, e.g. rand(3,3)
from numpy.matlib import rand,zeros,ones,empty,eye
# Define a Hermitian function
def hermitian(A, **kwargs):
return num.transpose(A,**kwargs).conj()
# Make some shorcuts for transpose,hermitian:
# num.transpose(A) > T(A)
# hermitian(A) > H(A)
T = num.transpose
H = hermitian
MATLAB packages/tools and equivalent for use with NumPy
Plotting: matplotlib provides a workalike interface for 2D plotting; Mayavi provides 3D plotting
Symbolic calculation: swiginac appears to be the most complete current option. sympy is a project aiming at bringing the basic symbolic calculus functionalities to Python. Also to be noted is PyDSTool which provides some basic symbolic functionality.
Linear algebra: scipy.linalg provides the LAPACK routines
Interpolation: [/ScipyPackages/Interpolate scipy.interpolate] provides several spline interpolation tools
Numerical integration: scipy.integrate provides several tools for integrating functions as well as some basic ODE integrators. Convert XML vector field specifications automatically using VFGEN.
Dynamical systems: PyDSTool provides a large dynamical systems and modeling package, including good ODE/DAE integrators. Convert XML vector field specifications automatically using VFGEN.
Simulink: no alternative is currently available.
Links
See http://mathesaurus.sf.net/ for another MATLAB®/NumPy crossreference.
See http://urapiv.wordpress.com for an opensource project (URAPIV) that attempts to move from MATLAB® to Python (PyPIV http://sourceforge.net/projects/pypiv) with SciPy / NumPy.
In order to create a programming environment similar to the one presented by MATLAB®, the following are useful:
IPython: an interactive environment with many features geared towards efficient work in typical scientific usage very similar (with some enhancments) to MATLAB® console.
Matplotlib: a 2D ploting package with a list of commands similar to the ones found in matlab. Matplotlib is very well integrated with IPython.
Spyder a free and opensource Python development environment providing a MATLAB®like interface and experience
SPE is a good free IDE for python. Has an interactive prompt.
Eclipse: is one nice option for python code editing via the pydev plugin.
Wing IDE: a commercial IDE available for multiple platforms. The professional version has an interactive debugging prompt similar to MATLAB's.
Python(x,y) scientific and engineering development software for numerical computations, data analysis and data visualization. The installation includes, among others, Spyder, Eclipse and a lot of relevant Python modules for scientific computing.
Python Tools for Visual Studio: a rich IDE plugin for Visual Studio that supports CPython, IronPython, the IPython REPL, Debugging, Profiling, including running debugging MPI program on HPC clusters.
An extensive list of tools for scientific work with python is in the link: Topical_Software.
MATLAB® and SimuLink® are registered trademarks of The MathWorks.
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