Matlab cheat sheet some nifty commands clc clear clear commandwindow whos whos ans close all close(h) winopen(pwd) class(obj) save filename save filename save. 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.

1. Matlab Commands Cheat Sheet
2. Matlab Cheat Sheet Pdf
3. Microsoft Commands Cheat Sheet

• MATLAB–Python–Julia cheatsheet

Dependencies and Setup¶

In the Python code we assume that you have already run importnumpyasnp

1. MATLAB Cheat Sheet for Data Science Ali Habibnia Eghbal Rahimikia Last update: May, 2017 MATLAB r2017a Preliminaries fuc: This function or command requires a toolbox to execute. Ways to get help doc Display documentation. Doc command Display documentation for function. Help Display documentation in command window.
2. MATLABCHEATSHEET Throughoutthisdocumentx andy willbeeitherroworcolumnvectorsandA willalwaysbeamatrix. Basics clc Clearcommandwindow clear Clearallvariables clf.
3. Matlab Cheat Sheet Some nifty commands clc Clear command window clear Clear system memory clear x Clear x from memory ans Last result close all closes all gures close(H) closes gure H whos lists data structures winopen(pwd) Open current folder class(obj) returns objects class int16(x)=y convert doubles to Integers dlmread(’path’) Reads data.

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

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¶

Matlab Commands Cheat Sheet

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

Matlab Cheat Sheet Pdf

Programming¶

Microsoft Commands Cheat Sheet

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