MATLABCHEATSHEET Forloops for k = 1:5 disp(k); end Whileloops k = 0; while k.
fprintf
%4.2f in the formatSpec input specifies that the first value in each line of output is a floating-point number with a field width of four digits, including two digits after the decimal point. %8.3f in the formatSpec input specifies that the second value in each line of output is a floating-point number with a field width of eight digits, including three digits after the decimal point. n is a control character that starts a new line.
Line Properties
- Feb 15, 2014 A Matlab Cheat-sheet (MIT 18.06, Fall 2007) Basics: save 'file.mat' save variables to file.mat load 'file.mat' load variables from file.mat diary on record input/output to file diary diary off.
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- MATLAB For Dummies Cheat Sheet By Jim Sizemore, John Paul Mueller MATLAB is an incredibly flexible environment that you can use to perform all sorts of math tasks. A large array of engineering and science disciplines can use MATLAB to meet specific needs in their environment.
- Matlab Cheat Sheet Some nifty commands clc Clear command window clear Clear system memory clear x Clear x from memory commandwindow open/select commandwindow whos lists data structures whos x size, bytes, class and attributes of x ans Last result close all closes all gures close(H) closes gure H winopen(pwd) Open current folder.
Color:
red = r
green = g
blue = b
cyan = c
magenta = m
yellow = y
black = k
white = w
none
LineStyle:
solid line = -
dashed line = --
dotted line = :
dash dotted line = -.
no line = none
Marker:
circle = o
plus sign = +
asterisk = *
point = .
cross = x
square = square or s
diamond = diamond or d
none = none
MarkerEdgeColor & MarkerFaceColor:
same as color
MarkerIndices
max
mean
plot examples
plot examples
sum
Matlab Cheat Sheet
fprintf
%d in the formatSpec input prints each value in the vector, round(a), as a signed integer.
building arrays/loops
max loop
matlab
- MATLAB–Python–Julia cheatsheet
Dependencies and Setup¶
In the Python code we assume that you have already run importnumpyasnp
In the Julia, we assume you are using v1.0.2 or later with Compat v1.3.0 or later and have run usingLinearAlgebra,Statistics,Compat
Matlab Cheat Sheet Pdf
Creating Vectors¶
Operation | MATLAB | Python | Julia |
---|
Row vector: size (1, n) |
Column vector: size (n, 1) |
1d array: size (n, ) | Not possible | or |
Integers from j to n withstep size k |
Linearly spaced vectorof k points |
Creating Matrices¶
Operation | MATLAB | Python | Julia |
---|
Create a matrix |
2 x 2 matrix of zeros |
2 x 2 matrix of ones |
2 x 2 identity matrix |
Diagonal matrix |
Uniform random numbers |
Normal random numbers |
Sparse Matrices |
Tridiagonal Matrices |
Manipulating Vectors and Matrices¶
Operation | MATLAB | Python | Julia |
---|
Transpose |
Complex conjugate transpose(Adjoint) |
Concatenate horizontally | or | or |
Concatenate vertically | or | or |
Reshape (to 5 rows, 2 columns) |
Convert matrix to vector |
Flip left/right |
Flip up/down |
Repeat matrix (3 times in therow dimension, 4 times in thecolumn dimension) |
Preallocating/Similar | N/A similar type |
Broadcast a function over acollection/matrix/vector | Functions broadcast directly | Functions broadcast directly |
Accessing Vector/Matrix Elements¶
Operation | MATLAB | Python | Julia |
---|
Access one element |
Access specific rows |
Access specific columns |
Remove a row |
Diagonals of matrix |
Get dimensions of matrix |
Mathematical Operations¶
Operation | MATLAB | Python | Julia |
---|
Dot product |
Matrix multiplication |
Inplace matrix multiplication | Not possible |
Element-wise multiplication |
Matrix to a power |
Matrix to a power, elementwise |
Inverse | or | or |
Determinant |
Eigenvalues and eigenvectors |
Euclidean norm |
Solve linear system(Ax=b) (when (A)is square) |
Solve least squares problem(Ax=b) (when (A)is rectangular) |
Sum / max / min¶
Operation | MATLAB | Python | Julia |
---|
Sum / max / min ofeach column |
Sum / max / min of each row |
Sum / max / min ofentire matrix |
Cumulative sum / max / minby row |
Cumulative sum / max / minby column |
Programming¶
Operation | MATLAB | Python | Julia |
---|
Comment one line |
Comment block |
For loop |
While loop |
If |
If / else |
Print text and variable |
Function: anonymous |
Function |
Tuples | Can use cells but watch performance |
Named Tuples/Anonymous Structures |
Closures |
Inplace Modification | No consistent or simple syntaxto achieve this |