Alger

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11 years, 116 days

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These are replies submitted by Alger

@Alec Mihailovs

Thank you for your help

I understand my error

 

Thank you for the two answers.

I have some difficulties to plot the DFT and compare it to Fourier series as:

ffs:=t->(a[0]/2)+Sum(a[i]*cos(2*Pi*t*i/T)+b[i]*sin(2*Pi*t*i/T),i=1..N-1);

fdft:=t->(a0/2)+Sum(A[i]*cos(2*Pi*t*i/T)+B[i]*sin(2*Pi*t*i/T),i=1..N-1);

plot({ffs(t),fdft(t)},t=0..2);

Error, (in fdft) bad index into Array

Perhaps due to Arrays ?

Could you help

Thanks

Thank you for the two answers.

I have some difficulties to plot the DFT and compare it to Fourier series as:

ffs:=t->(a[0]/2)+Sum(a[i]*cos(2*Pi*t*i/T)+b[i]*sin(2*Pi*t*i/T),i=1..N-1);

fdft:=t->(a0/2)+Sum(A[i]*cos(2*Pi*t*i/T)+B[i]*sin(2*Pi*t*i/T),i=1..N-1);

plot({ffs(t),fdft(t)},t=0..2);

Error, (in fdft) bad index into Array

Perhaps due to Arrays ?

Could you help

Thanks

Thank you for your good answers

Thanks

Thank you for your good answers

Thanks

Could the asker give boundary conditions ?

I an interested to know how we can find _F1 and _F2

Could the asker give boundary conditions ?

I an interested to know how we can find _F1 and _F2

restart:

liste:=[x^2,2*y]:

zip(assign, [seq(w[i],i=1..2)], liste);

w[2];

                                2*y

restart:

liste:=[x^2,2*y]:

zip(assign, [seq(w[i],i=1..2)], liste);

w[2];

                                2*y

Yes, I understand

Thanks

Yes, I understand

Thanks

assign is one way

Thank you

assign is one way

Thank you

This is what I want

Thank you

This is what I want

Thank you

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