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Description:
About MATLAB
--Solve And contribute--
2006 MATHANDING GROUP
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Complex numbers in Simulink?
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Hi Group!
Any Matlab/simulink experts there?
How to deal with complex numerical data in simulink? most blocks take
only double, real, boolean etc. but not complex.
there's a block to convert the complex number into two: real &
imaginary parts, but the next connected block doesnt accept 2 signals... more »
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Vector position / Comparison ==
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Hi,
I have 2 vectors.
Example of vector A = [1.5 3.5 2.5 3 0.5 1 3 0.5 1.5 0.5...]
Example of vector B = [ 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 ....]
I need a vector C where to put , for each value in vector A, its
position in vector B
I need C = [ 4 8 6 7 2 3 6 2 4 2 ]... more »
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Learning of MATLAB
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Dear
I want to lear the Basic-Basics of MATLAB. That how to write even
equaltions in this program. If there are some slides/book or any other
material please forward to me.
Thanks
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matrix normalization
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Hi,
I have two complex matrices,
A and B.
I would like to fulfill a condition,
trans(A)*B+trans(B)*A=I
Can anybody tell me how to do that, preferably in matlab?
Thanks in advance..
sunil
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from .mat file to a .jpg file
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Hi,
Is there an easy way to convert an .mat file into a .jpg file? I have
been trying to read a grey intensity file (.mat) and save it into a
jpg file but somehow the scaling does not work.
I guess this should be straightforward with save or imwrite ...
Does anyone have a suggestion?
Cheers... more »
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Simulink integrator
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If we integrate sine wave we should get cosine wave. I tried to use 1/
s block of siulink. The output waveform is geteing level shifted,
becayse of integation constant. Can sombody indicate how to solve this
problem?
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data generation
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Hello all,
I need to generate data with some statistical configuration (e.g.
average = a, standard deviation = st, covariance = c and correlation
coefficient = cc) and I'm having problems.
I can create data with some average and standard deviation but I
couldn't insert covariance and correlation.... more »
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Controlling the number of values in imwrite when outputing ASCII
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Hi
I am trying to read a jpg file and write it out as ASCII text (so I
can use it to drive rtl). This is what my .m file contains.
***************************
clear;
rgb = imread('c:/testmathlab/flaming o.jpg');
imfinfo('C:/testmathlab/flamin go.jpg');
imshow(rgb);
imwrite(rgb,'c:/testmathlab/fl amingo.ppm', 'Encoding','ASCII');... more »
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set decimal for axes
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Hi
I am new to Matlab. I have a 2D (xy) plot. y-axis contains very small
range of number (2.10 to 2.55). On the plot, the precision is not
uniform, i mean it has 2.1, 2.1003, 2.10423, 2.3, 2.0004123 .......
etc. I want only double precision (only 2 numbers behind decimal). How
can it be controlled.... more »
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Funcion de dos variables
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Quisiera realizar el ajuste de una funcion de dos variables
independientes x e y.
La tabla de datos de la que dispongo seria la siguiente:
120 valores de f(x,y)
120 valores de x
120 valores de y
En este caso, he generado una matriz de datos, pero al tratarse de un
modelo con dos variables independientes, no se como llevar a cabo el... more »
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