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Dragon Notes

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  UNDER CONSTRUCTION

MATLAB:
Commands




Reference matrices

\(\ds A = \mtxx{0.86}{1.52}{1.60}{3.63}\)\(\quad B = \lrbra{\mtxxx{3.00}{4.72}{0.00}{6.11}{9.07}{2.87}{2.54}{5.30}{4.45}}\) \(\quad v=\lrbra{\nmtttx{0.50}{6.67}{3.63}{4.72}}\)

Data structures

>> x = linspace(0, 1, 5)
x = 
    0    0.250    0.500    0.750    1.000

>> find(A<2)
ans = 
     1   
     2   
     3

% (first, last, #_of_elems) % defines row vector with equally-spaced elements % between first & last, per #_of_elems % returns indices of elements satisfying a Boolean predicate


RNG
(random number generators)

>> x = rand(2)
x = 
    0.8147    0.1270
    0.9058    0.9134

>> x = rand(2, 3)	
x = 
    0.6324    0.2785    0.9575
    0.0975    0.5469    0.9649

% generates a 2x2 matrix w/ entries % from a uniform PDF between 0 and 1 % generates a 2x3 matrix w/ entries % as above


m-files

>> save stuff x

>> load stuff

% saves variable x to an m-file stuff.mat % loads variables from m-file stuff.mat


Miscellaneous

>> doc randi
>> cd 'C:\Users\user\folder'
>> pwd
>> ls
>> clc
>> addpath('C:\Users\etc')
>> [Shift]+[Right Click]

% opens documentation for randi function % sets working directory path (absolute) / cd = current directory % displays current working directory path / pwd = print working directory % lists files in current working directory / ls = list % clears command window % adds directory accessible outside of working directory % displays 'Copy as path' option, copying folder absolute path





Dragon Notes,   Est. 2018     About

By OverLordGoldDragon