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How to pass a audio signal through a filter
This is fine at the moment. Now filter with from 0 to 4000Hz to make sure the results are different(I mean if you filter from 40...

12 years 前 | 0

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How to pass a audio signal through a filter
The first step is to design a filter to obtain the A and B vector coefficients.Then use the Butter function, for instance to obt...

12 years 前 | 1

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How to find the value of R ?
Is this what you mean? >> A=27; >> E=1:1:10; >> R = 0.173*(E.^3/2)*A.^1/3 R = Columns 1 through 9 ...

12 years 前 | 0

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Solving a complicated equation in matlab
I think there is nothing wrong with your code. If I do f(-0.351409329825233) the answer is ans = -3.9968e-...

12 years 前 | 1

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Finding jacobian of a matrix
The jacobian command calculates symbollically the jacobian of a given matrix. The following example can be found in the Mathw...

12 years 前 | 0

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problems about solve exponential function
When you execute this code in Matlab >> syms x; >> f=-10*exp(-x); >> solve(f,x) >> isempty(a) ans = ...

12 years 前 | 0

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problems about solve exponential function
In the warning message displayed by Matlab it says no solution has been found(just as it happens if the function has no roots), ...

12 years 前 | 0

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cannot figure out the reason for a warning message
Hi, I am working with a piece of code, and though the code seems to work well(as the results yielded seem to be correct)Matlab s...

12 years 前 | 0 个回答 | 0

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Find vector elements that sum up to specific number
I don´t know any specific Matlab command to adress your problem, however you can write an M-file to solve your problem. A po...

12 years 前 | 0

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Suggest a data structure to represent a set of geographical points
Try using multidimensional arrays. The idea is that the "third dimension" represents the index of your bidimensional latitude-lo...

12 years 前 | 0

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problem with imag command when evaluating symbolic expressions.
The answer is right, if you try subs((9*i*conj(x))/2 - (i*y)/2 - (9*i*x)/2 + (i*conj(y))/2 + 4),{x,y},{0,0}) or subs((9*i*conj(x...

12 years 前 | 0

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problem with imag command when evaluating symbolic expressions.
Hi, when I execute the following code in Matlab syms x y; f=4*i+9*x+y; imag(f) I get the following result ans = ...

12 years 前 | 2 个回答 | 0

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Discrete acceleration data to position
I am not sure, but theoretically ,if you have acceleration, and you want to get displacement, you have to integrate to get veloc...

12 years 前 | 0

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What will be the sampling frequency of the following time series data??
I am not sure I am understanding your question very well, but it seems you have a sample every 0.00274 units of time. You have t...

12 years 前 | 0

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提问

How can I solve a problem with subs?
I have to substitute values in a matrix with 20 variables. I substitute variable after variable using a for loop, but in some ca...

12 years 前 | 1 个回答 | 0