MatLab
how to set start up folder in Windows?
make a file named "startup.m" under the installation folder e.g. "C:\Program Files\MATLAB\R2013a\toolbox\local"
write in "startup.m"
"cd D:\target folder"
t = [1 2 3 4 5] %row vector
t = 1:5
t = 0:0.01:1
whos %show current defined variables
pi
plot(x,y)
x=3+4i %complex number
a=[1 2 3;4 5 6;7 8 9] %matrix
b=rand(5,6) %random matrix
size(b) %size of a matrix
a' %matrix traspose
a*b %matrix multiplication
a.*b %element-wise multiplication
inv(a) %inverse matrix
a(i,j) %matrix element aij
a(1:3,2:end) %a block of matrix
a(1:3,:) %row 1 to 3 and all columns
surf(a) %plot a matrix as a 2D function of index i and j
load output.mat % load matlab matrix format file
A = load('matrixdata.txt'); % load the matrix from text file
Colorbar font size returns to default value when saving the figure?
In the figure window, go to "File->Export Setup->Fonts", uncheck the box "Custom size", click "Apply to Figure", then save the figure