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All functions

argmax() argmin()
Row/Column Max/Min Indices
atleast_2d()
View Input as an Array with at Least Two Dimensions.
bmat()
Block Matrices
clip()
Clip Values
dmat()
Data Frames
eye()
Identity Matrix
fill() falses() trues() ones() zeros()
Fill a Matrix
flatten()
Flatten Matrices/Arrays
hcat() vcat()
Concatenate Matrices
inv()
Matrix Inverse
is.tril()
Lower Triangular Matrix Test
is.triu()
Upper Triangular Matrix Test
linspace()
Linearly-spaced Elements
logspace()
Logarithmically-spaced Elements
mat()
Matrices
matrix_rank()
Matrix Rank
meshgrid()
Rectangular 2-D Grid
pprint()
Pretty Printing
rand()
Matrix/Array of Uniform Random Numbers
randi()
Matrix/Array of Uniform Random Integers
randn()
Matrix/Array of Normal Random Numbers
repmat()
Repeat Vectors and Matrices
resize()
Resize Matrices and Arrays
size()
Dimensions of a Matrix/Array
tr()
Trace of a Matrix
tri()
Lower/Upper Triangular Matrix
tril()
Extract Lower Triangular Matrix
triu()
Extract Upper Triangular Matrix