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mehdibgh

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7 years, 327 days
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These are questions asked by mehdibgh

How is it possible to stop Maple from ru...

mehdibgh 240 Maple
worksheet
March 24 2017
3 5

How is it possible to stop Maple from running, in specific line of program when using execute the entire worksheet???

How do you suggest to find eigenvalue of...

mehdibgh 240 Maple
linear-algebra eigenvalues
March 23 2017
1 1

I have a big square matrix(1000*1000) having parameter x within some of its entries.

How do you suggest to find close form eigenvalue of such matrix with maple? (eigenvalue will be function of x)

 

Extravagant result, Please help?...

mehdibgh 240 Maple
multiplication matrix
March 23 2017
2 3

I have two symmetric real matrices as below (Mt,Kk).

I multilpy them in Mt.Kk.Mt.

But the result is not symmetric.!!!!why????

 

``

> 

restart; with(LinearAlgebra)

Error, invalid input: with expects its 1st argument, pname, to be of type {`module`, package}, but received shareman

  
> 

Mt := ImportMatrix("C:/Mt.mpl"); -1; Norm(Mt-LinearAlgebra:-HermitianTranspose(Mt), 2)

0.

 (1)
> 

Kk := ImportMatrix("C:/Kk.mpl"); -1; Norm(Kk-LinearAlgebra:-HermitianTranspose(Kk), 2)

0.

 (2)
> 

Aa := Typesetting:-delayDotProduct(Typesetting:-delayDotProduct(Mt, Kk), Mt); -1; Norm(Aa-LinearAlgebra:-HermitianTranspose(Aa))

4608.00000953674316

 (3)
> 

Aa

RTABLE(18446744074182082558, complex[8], Matrix, rectangular, Fortran_order, [], 2, 1 .. 45, 1 .. 45)

 (4)
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Download question.mw

I couldnt upload Kk.mlp and Mt.mlp so changed their extensions to mw. for using please change them to .mlp

Download Kk.mw

Download Mt.mw

 

does anybody know how to copy a rtable s...

mehdibgh 240 Maple
March 22 2017
1 3

does anybody know how to copy a rtable structure in a worksheet and paste it on the other worksheet?

I copy it by right click and paste on the other one but no data transfered.

Why I receive Error, (in Matrix) unable ...

mehdibgh 240
matrix datatype
March 13 2017
2 2

For the below code why I got error???
 

``

> 

restart

Error, invalid input: with expects its 1st argument, pname, to be of type {`module`, package}, but received shareman

  

NULL

> 

Mm__11 := Matrix(7, 7, {(1, 1) = -a*b*I__0, (1, 2) = 0, (1, 3) = 0, (1, 4) = -a*b*I__1, (1, 5) = 0, (1, 6) = 0, (1, 7) = 0, (2, 1) = 0, (2, 2) = -a*b*I__0, (2, 3) = 0, (2, 4) = 0, (2, 5) = -a*b*I__1, (2, 6) = 0, (2, 7) = 0, (3, 1) = 0, (3, 2) = 0, (3, 3) = -a*b*I__0, (3, 4) = 0, (3, 5) = 0, (3, 6) = 0, (3, 7) = 0, (4, 1) = -a*b*I__1, (4, 2) = 0, (4, 3) = 0, (4, 4) = -a*b*I__2, (4, 5) = 0, (4, 6) = 0, (4, 7) = 0, (5, 1) = 0, (5, 2) = -a*b*I__1, (5, 3) = 0, (5, 4) = 0, (5, 5) = -a*b*I__2, (5, 6) = 0, (5, 7) = 0, (6, 1) = 0, (6, 2) = 0, (6, 3) = 0, (6, 4) = 0, (6, 5) = 0, (6, 6) = 0, (6, 7) = 0, (7, 1) = 0, (7, 2) = 0, (7, 3) = 0, (7, 4) = 0, (7, 5) = 0, (7, 6) = 0, (7, 7) = 0})
> 

I__0 := 0.102033222998e-2:
> 

M__11 := Matrix(Mm__11, datatype = float[8])

Error, (in Matrix) unable to store '-a*b*I__0' when datatype=float[8]

  
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