kambiz1199

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These are questions asked by kambiz1199

how can i solve this operate differential equation

convert(expand((D[1] - 1)*(D[1]^2 + 2)*y(x) = 0), diff);
dsolve(%)

 

hi. how can i get this solution of eq

like this (just show not solving)

code

a := 3;
b := 5;
c := -1;
eq := exp(-c)/(a*b) + a^b*exp(c);
 

hi. i write this code with "for" loop. but i dont want to show comma sign in my print. how can i remove it

for example

thanks in advance

code

restart;
for i to 2 do
    for j to 2 do S[i, j] := 2*mu*varepsilon[i, j] - add((2*mu)/3*varepsilon[r, r]*delta[i, j], r = 1 .. 3); print("S"[i, j] = S[i, j]); end do;
end do;
 

hi. 

i want to plot these two equation that z is complex. 

i try it by implicitplot but for the second one it's not work. thank you

i have a acceleration of record earthquake(in excel ) and i get fourier and power spectra from another software (seismosignal) .Now i want to get it in maple but i try a lot but i couldn't.
i very Eager to learn it

rr.xlsx