MATLAB ------ A Powerful Research Tool for Scientists
Without MATLAB, computers
might be nothing but an email box for many scientists.
Tips:
How to change display format to have more precision?
How to export a figure to EPS format? with
specified size?
How to find the roots of a polynomial
equation?
Export DATA from MATLAB to a text file with specified
format?
How to input ' character in the string?
how to input "underscore" and "caret" "^' '_" in MATLAB
plot?
To display numbers with more precision, using
"format long"
Better figure exporting tools are "exportfig.m" . The command is
used like this:
exportfig(gcf,'pic3.eps', 'width',6, 'fontmode','fixed', 'fontsize',8);
Detailed user guide: Part I &Part
II
other assistant programs are also avialalbe as: previewfig.m, applytofig.m, restorefig.m
To calculate a value of a polynomial 'using "
polyval"
Using fprintf:
Example:
a = zeros(150,2)
a(1,:)=0.0:0.2:29.8
a(2,:)=512
fid = fopen('exp.txt','w');
fprintf(fid,'%6.2f %3d\n',a);
fclose(fid);
use double quotes. For example a ='a''b' will make a=a'b
MATLAB plot's labels use Latex syntax. So, to really
putting an "_" instead of make subscript, use "\_"
MATLAB M files example:
1. Digital Communication:
2. Digital Signlal Processing and Filters