Hi, this is what i have

With(LinearAlgegra):

K:=ZeroMatrix(2):

J:=K.K^T

how do I get J to show me just a 2x2 zero matrix again? The output that I got is ZeroMatrix(K).ZeroMatrix(K)^T

Please help. Thanks.

Hi, I try to integrate the following but it is giving me more than i want, how do I fix that ?

The answer should be just [0.1745329,0.6981317,0.1745329]. The answer with power of minus 9 and minus 10 is insignificant.

Please help. Many thanks

Hi, I tried to export my answers into an excel file, but my numbers are all complex numbers.

It says "cannot export an rtable with complex values". How can I go about it?

Please advice. Many thanks.

Hi, below is what I have. I am trying to change elenum:=Array([2,4,6,8,16])

Then I changed my E0:=evalf((map(c->c*((map(int,((B^%T).(B1).J),eta=0..1))),L))

I also changed my E2:=evalf(map(c->c*map(int,((B2^%T).(B2).J),eta=0..1)),(1/(2*L))))

My E0M:=Matrix(nodes), which I am not sure if it is correct.

Then I tried to use the for do statements, it would not allow me to do so. What i'm trying to get is the first one to be a 5x5 matrix, followed...

Hi, I have a array with 5 numbers in it. I would like to multiply it into a 3x3 matrix, how do i do that?

for example A:=([3,5,7,9,15])

B:=Matrix([3x+4,2x-9,42],[8x+2,93x^2,6y],[5x/y,34y,32y^2])

how do i get 5 sets of output when i multiply it together? And can i get pick out each outpur as well? for example, I want the 3rd output which is the matrix multiply with 7, can I pick it out seperately if I wanted?

Please advice. Thanks