Answered
How to draw same size rectangle on different image location
Try to adjust this protocol to your problem : L=0.5; N=100; for n=1:N p=randn; p2=randn; r=p+L; r2=p2+L...
How to draw same size rectangle on different image location
Try to adjust this protocol to your problem : L=0.5; N=100; for n=1:N p=randn; p2=randn; r=p+L; r2=p2+L...
12 years ago | 1
Answered
variance equation of a white noise
you can program E or use *var* function, %var(x,0) %var(x,1)
variance equation of a white noise
you can program E or use *var* function, %var(x,0) %var(x,1)
12 years ago | 0
Answered
How to add noise to rect fuction (rectangle) ?
The solution exists for one dimensional function, when you apply the function, you obtain a logical array, you need to convert i...
How to add noise to rect fuction (rectangle) ?
The solution exists for one dimensional function, when you apply the function, you obtain a logical array, you need to convert i...
12 years ago | 0
Answered
how to make fft2 surf plot with z axis in dB?
This problem does not occur with the following test : H=exp(-randn(10).^2); F=abs(fftshift(fft2(H,200,200))); F=F/m...
how to make fft2 surf plot with z axis in dB?
This problem does not occur with the following test : H=exp(-randn(10).^2); F=abs(fftshift(fft2(H,200,200))); F=F/m...
12 years ago | 0
Answered
Sine wave changing amplitude
Nuchto, That is the amplitude modulation, it is possible to simulate that type of signals: x=real(exp(j*2*pi*(0:0.1:10))); ...
Sine wave changing amplitude
Nuchto, That is the amplitude modulation, it is possible to simulate that type of signals: x=real(exp(j*2*pi*(0:0.1:10))); ...
12 years ago | 0
Answered
Draw a polar plot from cartesian plot of gain function
In the code, v is not defined, i assume is it omegat, try : figure; polar(omegat,abs(gainfunction)); % 20*log10(abs(gain...
Draw a polar plot from cartesian plot of gain function
In the code, v is not defined, i assume is it omegat, try : figure; polar(omegat,abs(gainfunction)); % 20*log10(abs(gain...
12 years ago | 0
Answered
Question about coordinate system in matlab
You can start inspecting the x,y values in sample, to get an idea try : >>imshow('circuit.tif') Then go to *Tools* in men...
Question about coordinate system in matlab
You can start inspecting the x,y values in sample, to get an idea try : >>imshow('circuit.tif') Then go to *Tools* in men...
12 years ago | 0
Answered
Help generating a triangle using arrays, rotating triangle
Colin, you can try using the function *line* as the following : x1=[0 2]; y1=[0 0]; x2=[0 0]; y2=[0 1]; x3=[0 2]; ...
Help generating a triangle using arrays, rotating triangle
Colin, you can try using the function *line* as the following : x1=[0 2]; y1=[0 0]; x2=[0 0]; y2=[0 1]; x3=[0 2]; ...
12 years ago | 0
Answered
How do you plot a surface in matlab?
There several tutorials that illustrate how to make a graph of f(x,y), here is simple example : [x,y]=meshgrid(-1:0.1:1); ...
How do you plot a surface in matlab?
There several tutorials that illustrate how to make a graph of f(x,y), here is simple example : [x,y]=meshgrid(-1:0.1:1); ...
12 years ago | 0
| accepted
Answered
i was asked to develop a program that will evaluate a function for -0.9<x<0.9 in steps of 0.1 by arithmetic statement, and series allowing as many as 50 terms. however, end adding terms when the last term only affects the 6th significant in answer
Developing Taylor requires to compute the derivative : x=-.9:.1:.9; f=1./sqrt(1+x.^2); g=1-1/2*(x.^2)+(1...
i was asked to develop a program that will evaluate a function for -0.9<x<0.9 in steps of 0.1 by arithmetic statement, and series allowing as many as 50 terms. however, end adding terms when the last term only affects the 6th significant in answer
Developing Taylor requires to compute the derivative : x=-.9:.1:.9; f=1./sqrt(1+x.^2); g=1-1/2*(x.^2)+(1...
12 years ago | 0
Answered
Matrix for double pendulum not populating last column
This problem is sensitive to initial conditions, you can start by checking the equations, or values given to variables. In funct...
Matrix for double pendulum not populating last column
This problem is sensitive to initial conditions, you can start by checking the equations, or values given to variables. In funct...
12 years ago | 0
Answered
i want to find angle between two 3d dots in kinect skeleton
try to verify these relations : r=sqrt(x^2+y^2+z^2); phi=acos(z/r); % radian theta=acos(x/(r*cos(phi)); radian ...
i want to find angle between two 3d dots in kinect skeleton
try to verify these relations : r=sqrt(x^2+y^2+z^2); phi=acos(z/r); % radian theta=acos(x/(r*cos(phi)); radian ...
12 years ago | 0
Answered
compute the 2 dimensional (x,y) with respect to time
As long as there are three variables, you need to use : plot3(t,x,y); %.....
compute the 2 dimensional (x,y) with respect to time
As long as there are three variables, you need to use : plot3(t,x,y); %.....
12 years ago | 0
Submitted
Lorentz poles in complex plane
Generating n peaks in complex using nth version of Lorentz function.
12 years ago | 153 downloads |
Answered
Replace jth zero in vector with j
try : x = [1 0 2 4 -3 0 3 0]; y=x; [a,b]=find(x==0); y(b)=b;
Replace jth zero in vector with j
try : x = [1 0 2 4 -3 0 3 0]; y=x; [a,b]=find(x==0); y(b)=b;
12 years ago | 0
Answered
Soundsc and sound not Playing anything
It can be the range of the vector, try *sound(y/max(y),Fs)*.
Soundsc and sound not Playing anything
It can be the range of the vector, try *sound(y/max(y),Fs)*.
12 years ago | 0
Answered
Sir i am getting error :function isgray has been removed. Please suggest me which version of matlab i should use.
I think this function test an image of it is gray scale image, try to use an alternative way, using always logical answer, The g...
Sir i am getting error :function isgray has been removed. Please suggest me which version of matlab i should use.
I think this function test an image of it is gray scale image, try to use an alternative way, using always logical answer, The g...
12 years ago | 0
Answered
how to generate three independent sinusoidal signal in matlab?
sin waves with different frequencies : Fs=20; f1=2; f2=4; f3=9; t=0:1/Fs:10-1/Fs; y1=sin(2*pi*f1*t); y2=sin(2*pi...
how to generate three independent sinusoidal signal in matlab?
sin waves with different frequencies : Fs=20; f1=2; f2=4; f3=9; t=0:1/Fs:10-1/Fs; y1=sin(2*pi*f1*t); y2=sin(2*pi...
12 years ago | 0
| accepted
Answered
Vector convergence in cartesian coordinates
There are 24 undefined variables *C1;G0;hMaz;hMpol;Alpha;theta;phi;EAj;EAi;EAk;Ku;Vol;P;C2;Is;P_hbar;P_Q;Ms;Nx;Nz;Ny;hx;hy;hz;*...
Vector convergence in cartesian coordinates
There are 24 undefined variables *C1;G0;hMaz;hMpol;Alpha;theta;phi;EAj;EAi;EAk;Ku;Vol;P;C2;Is;P_hbar;P_Q;Ms;Nx;Nz;Ny;hx;hy;hz;*...
12 years ago | 0
Answered
A script that writes all even numbers from 1 to 100
Here is a beginning using while, : N=100; n=1; c=1; while n<N if mod(n,2)==0 E(c)=n;c=c+1; end n=n+1; en...
A script that writes all even numbers from 1 to 100
Here is a beginning using while, : N=100; n=1; c=1; while n<N if mod(n,2)==0 E(c)=n;c=c+1; end n=n+1; en...
12 years ago | 0
Submitted
Frequency time graph.
Three dimensional graph to represent one dimensional sine waves
12 years ago | 355 downloads |
Answered
Replacing part of a matrix with a matrix
you can try : A(1:2,1:2)=0;
Replacing part of a matrix with a matrix
you can try : A(1:2,1:2)=0;
12 years ago | 2
| accepted
Answered
What exactly is the "n-point DFT" that fft() computes?
N is the number of points used to calculate the fft, it does not increase physical resolution but adds more point to the spectru...
What exactly is the "n-point DFT" that fft() computes?
N is the number of points used to calculate the fft, it does not increase physical resolution but adds more point to the spectru...
12 years ago | 0
Answered
General Question of Matlab.
Maybe you need to to understand the structure of the problem before trying to solving as program, or you try to understand the p...
General Question of Matlab.
Maybe you need to to understand the structure of the problem before trying to solving as program, or you try to understand the p...
12 years ago | 0
Answered
Plotting Gamma Distribution, please help?
It is correct, you just need to exchange pdf with X : plot(x,pdf);
Plotting Gamma Distribution, please help?
It is correct, you just need to exchange pdf with X : plot(x,pdf);
12 years ago | 1
Answered
How to generate a discrete square pulse, lets say N times?
You can either write the function or use built-in function, here is an example using 1000 samples : N=1e+3; Fs...
How to generate a discrete square pulse, lets say N times?
You can either write the function or use built-in function, here is an example using 1000 samples : N=1e+3; Fs...
12 years ago | 0
Answered
Problems with snr function
Generally the formula is SNR=20log10(std(signal)/std(noise)) , in your case you have : snr=20*log10(std(xn)/std(ns...
Problems with snr function
Generally the formula is SNR=20log10(std(signal)/std(noise)) , in your case you have : snr=20*log10(std(xn)/std(ns...
12 years ago | 0
Answered
convert number to string but keep it the same as it is
You can achieve that command using transformation from matrix to cells, if M is your matrix : M=magic(10); N=siz...
convert number to string but keep it the same as it is
You can achieve that command using transformation from matrix to cells, if M is your matrix : M=magic(10); N=siz...
12 years ago | 0
Answered
Plotting 2-variable Function with integration using MatLab
The problem is in the function *int*, it is designed for symbolic calculation while your work with numerical one, if you have th...
Plotting 2-variable Function with integration using MatLab
The problem is in the function *int*, it is designed for symbolic calculation while your work with numerical one, if you have th...
12 years ago | 0