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Problem when graphing digital filter chebyshev
Need some some addition arguments to freqz(). Check its doc page for more information: Fs = 44000; Fn = Fs/2; ...

4年以上前 | 1

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Request for help computing convolution of random variables via fft
Here is one option, illustrated with two widely separated normal pdfs: mu1 = 10; sigma1 = 2; mu2 = -5; sigma2 = 1; Zextreme =...

4年以上前 | 0

質問

Should the Symbolic Math Toolbox Enforce Assumptions on Assignment?
Consider the following: syms a real isAlways(in(a,'real')) So far, so good. But a = sym(2)*1i; % accepted w/o error or war...

4年以上前 | 2 件の回答 | 0

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Conditional Normal Random Distribution
Yes. If you know mu and Sigma of the vector x and the first n values of x are given, then the density of x(n+1:end) is also nor...

4年以上前 | 0

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CDF of VOn Mises distribution
This code seems to recreate one of the CDF plots on the linked wikipedia page. It doesn't run very fast. syms x mu kappa x0 rea...

4年以上前 | 0

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I have a symbolic expression from simplify which has obvious cancellations and other further simplifications: how do I force this?
Sometimes you can get furhter along by putting assumptions on the variables that reflect what they actually represent. For examp...

4年以上前 | 0

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blkbuild command is not functioning in my matlab software, i have installed control system toolbox although programme is not executing.
Hmm. Not sure why that error is coming up. Block 1 is clearly defined. But Block 3 is not, so that should cause an error. Did ...

4年以上前 | 0

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The modeling of delta function in the numerical calculations
Would it just be: deltafunc = @(t,tprime,deltat)((abs(t-tprime)<deltat/2)./deltat); % assumes deltat > 0 Not sure how that Xz ...

4年以上前 | 0

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find overshoot, undershoot, rise time and fall time on a non step response function
I'm not sure what you mean by "fall time," so can't help you there. Why isn't stepinfo(y,t) sufficient? Is the data too nois...

4年以上前 | 0

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Finding Impulse response of LTI system when input signal and output are given.
We know that y[n] = h[n] * x[n] where * denotes convolution. You have x[n] and y[n]. Let h[n] be denoted as [h0 h1 h2 etc.]. Us...

5年弱前 | 0

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Plotting multiple step response for multiple transfer function
What's the basis for the assertion that GS should be unstable at K = 26.25? As you've seen, that clearly cannot be the case beca...

5年弱前 | 0

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How to change the timebase of a discrete-time model.
This function might be what you're looking for: doc d2d

5年弱前 | 0

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Determining the overshoot of step response without plotting it
Check out doc stepinfo

5年弱前 | 0

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Error when ploting discrete time function
The function definition is implicitly assuming that the input, n, is a scalar. Looking at the first the term on its LHS: n = 2...

5年弱前 | 1

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rlocus throws up error
Seems to work fine: sys = tf([2 5 1],[1 2 3]); rlocus(sys); You might have a different function tf() or rlocus() that is shad...

5年弱前 | 0

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Why am I not able to obtain the Fourier Transform of exponent expression using Symbolic math?
Based on the assumption, I'm going to assume that f(x) = x*exp(-x) for x>=0 and f(x) = 0 for x < 0. In which case syms f(x) f...

5年弱前 | 1

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getting error while using feedback
The Control System Toolbox does not support operations on sym objects. Having siad that, the error message that I'm seeing is f...

5年弱前 | 0

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How can I differentiate an abstract symbolic function?
When I run this code (2019a) on my computer, I get: syms x y f(k) g(x,y) g(x,y) = f(x - 3*y); g_x = diff(g,x) g_y = diff(g,...

5年弱前 | 0

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Convert transfer function from s domain to z^-1 domain
c2d supports different methods. The "pole-zero mapping" is what c2d calls "matched." However the result using "matched" does n...

5年弱前 | 0

質問

Should sympref Change the Behavior of rectangularPulse()?
The doc page for rectangularPulse states: If x = a or x = b and a <> b, then the rectangular pulse function equals 1/2. Verify...

5年弱前 | 0 件の回答 | 0

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How to solve an ODE in Simulink with non constant coefficients?
Use a Clock block from the Sources library to output the simulation time (t).

5年弱前 | 0

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How to get the coefficients of a fractional polynomial from syms?
If I correctly understand this comment (and I'm not sure I do), it sounds like you just want the coefficients of the numerator o...

5年弱前 | 0

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How can I get the correct spectral phase variations of a super gaussian pulse?
The posted code doesn't run. The frequency vector f is defined in terms of numel(X), but X isn't defined yet. I thing that intr...

5年弱前 | 0

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using of ss2tf command
In my opinion, that statement in the documentation doesn't make sense. It should say "... returns the Laplace transform of the ...

5年弱前 | 1

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Simulating Gamma distributed RV's using Matlab
For starters, probably shouldn't use inline. Use an anonymous function instead. And I'm going to change the variables involved ...

5年弱前 | 0

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what is root of a equation in s(laplace domain) in response of ilapalace means
If ilaplace can't find a closed form expression it returns the result in terms of "root," which can then be evaluated numericall...

5年弱前 | 0

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How to obtain FFT of nonuniformly spaced data?
You can try using the tspan input to od15i to specify equally spaced sample points in time at which the solution is desired. Che...

5年弱前 | 1

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Different frequency responses using [z,p,k] method and [b,a] for 2nd order elliptical filter
If fvtool is like freqz, you need to make sure that the sos input has more than one row. Otherwise, the input might not be inter...

5年弱前 | 1

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how to change line colors in bodes, nichols, nyquist, etc
I tested stepplot and bodeplot and am seeing the same thing as you, i.e., if more than 7 responses, then multiple responses are ...

5年弱前 | 0

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Does order of multiplication really matter when using simplify ?
I suspect that in the first instance the term 1/(2*pi) is first evaluated numerically, and then the result in coverted to symbol...

5年弱前 | 1

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