Saiankita Anand

Last seen: 3 years ago | Active since 2016

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Simulink model for DC shunt motor does not give correct output despite no errors.
The attached Simulink .mdl file (MATLAB 2017) contains a model for DC shunt motor. The DC motor block was cut and pasted from MA...

7 years ago | 1 answer | 0

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Question

How do we make sure that the magnitude response of W(e^jw) is being calculated at the same set of frequencies in W’ by the command 'freqz' at every iteration?
For the equation in the attached file, FB(e^jw) is the Fourier transform of the feedback filter fb and W(e^jw) is the Fourier...

9 years ago | 0 answers | 0

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Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...

9 years ago

Solved

Create a row array using double colon operator
Create a row array from 9 to 1, using the double colon operator.

9 years ago

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

9 years ago

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Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

9 years ago

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

9 years ago

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

9 years ago

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

9 years ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

9 years ago

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Is my wife right?
Regardless of input, output the string 'yes'.

9 years ago

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

9 years ago

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Add two numbers
Given a and b, return the sum a+b in c.

9 years ago

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

9 years ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

9 years ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

9 years ago

Question

how can i integrate an array with respect to frequency w (omega)? the command "integral" requires function 'fun' to be declared as function of omega. how can i do this?
FB and W are frequency responses of two FIR filters fb and w. This is essentially what I am doing: numer1=(abs(FBW-W)).^2; f...

9 years ago | 1 answer | 0

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Question

i have declared an FIR filter as fb as given below. Now, i want to find its Fourier transform as FB(jw) with respect to frequency w (omega). How can i do that? I dont think its the same as taking DFT.
fb=fir1(50,[0.2500 0.8750]); %FIR filter fb

9 years ago | 1 answer | 0

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Question

I have a sound signal x(n). i want to make a random signal r(n) of the same length but half the magnitude of x(n). How do i make r(n) have half the magnitude of x(n)?
I have a sound signal x(n). i want to make a random signal r(n) of the same length but half the magnitude of x(n). How do i make...

9 years ago | 1 answer | 0

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Question

Hi. I am trying to create a loop for adaptive feedback cancellation. While the code runs without an error, i am not getting any output. Can anyone please help correct my mistake? Thank you in advance :)
[x,f,nbit]=wavread('tapestry.wav'); fb=zeros(length(x),1); %feedback signal, output of original...

9 years ago | 0 answers | 0

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