Math Forum / Math Software / MATLAB / July 2008

I want to define a fuction and calculate the area under that
function upto some spesific 'x' value. Unfortunately I've
not been able to find the right commands for matlab upto now.
For instanse I'd like to use exponential pdf [λ*e^(− λ*x)]

I'm trying to make a edit box invisible by using
set(handles.freq_low,'Visible','off')
when  i switch to a nother functionality, but matlab complains based
on the fact the edit box isn't empty.

Are there any example how to use Matlab to make the binary
file of data. The goal is to reduce the file size as well as
the accessing time to the file. Most of the data contain
zero, so I hope binary file can be much smaller than the

Hi, I want to type the special symbol, somehow like
handwritten low case l. It is called \ell in Latex, but I
failed to do so for unknown reasons. However, I did succeed
in typing other symbols such as \mu \alpha. Any advice is

Hy,
My problem:
Is there a way to upload a .csv file into matlab with
contains numbers and text? (e.g. row 1, 2, 4 contains only

I have program in Gui this program connection with simulink
I want to Run the program without install matlab in the
computer (I know convert the gui to exe file but I want
simulint work with it Why??????)

Hi, I want to add text label in a figure. The symbol I want
to label is a Latex one called \ell. However, it appears
that MATLAB does not accept the type. I tried some other
symbols like \mu, \alpha, all works well. Any advice is

How can I do my calculations with VS 2008 c++ on windows and then open the whole matlab and not only the command window? In this way I could continue comfortably with analysing my data using matlab's toolboxes.
your help with this would be very kind.
Alwan

i want to ask how to make .mat file from .txt file
thanks for your help.
best regard,
didi

I have made a simple DC motor model in simulink with current
and velocity loop. The position output is converted into 17
bits and is sent serially to one pin of parallel port.
Now I want to make this simulation in real time so I started

I really need to optimize this block of code:
for(i = 1:33)    
E(frame,i)=sum(power(samp_borders(i):samp_borders(i+1)).^2);
end;

Hi,
Is there anyone who can tell me what is wrong with part of
my m-file as fellow.
Q=sqrt(pi/(2*C))*symsum(exp(-pi*L*(A-B)/D), L, 0, inf)*phi;

Hello,
My problem is pretty simple.
i have a vector :
Vect = [ d c b a b c d] ;

(Lazy question, but..)
.. Can anyone contribute a short snippet?
Thanks!

I have the same question as you. Did you find out how to change the cylinder height? Thanks beforehand,
Daniela.