## 1152 Reputation

12 years, 126 days

## Seperate Real and Imaginary...

Maple 2024

I any trying to seperate the real and imaginary components but they are mixed up inside and outside a square root.

Their seems to be a problem displaying the worksheet.

```restart

expand((a+I*b)*(a-I*b))
(a+I*b)+(a-I*b)
# z = x *Iy    I need to seperate out solution to [x,y] & [x,-y]
#https://math.stackexchange.com/questions/44391/foci-of-a-general-conic-equation
eq := T*z^2 - (R + S*I)*z +G-K + H*I
sol:=solve(eq,z)
expand(sol[1]*sol[2])=a^2+b^2
simplify(sol[1]+sol[2]=2*a)
simplify(sol[1]-sol[2]=2*b)
```

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/2024-04-20_Q_Seperate_Real_&_Imaginary.mw .

## Return only two specific values from a p...

Maple 2024

I have a proceure that returns 7 values. I cac get it to return ang single specific value ousing e.g [2] to get the second.
Or a range[3..6] for the third to sixth.

Is there a way to get specific seperated values e.g [1] and[[6]. The procedure is burried in a package so it is difficult to post.

## Problem bug in Maple Primes with Replys ...

MaplePrimes

I have noticed over a few questions I have asked recently.
I ask a question.                   It goes to top of active converstaions

A bit of time passes  so slides  of the top six/seven that show

Another Reply/Answer from someone                possibly does not show in active conversations.  I catch this by the orange flag or email notification

I reply                                 Does not appear in active conversations..

This can kill the conversation chain.

I have even tried changing one of me replys to an answer but did not go to top active conversations again.

Has anyone else expperienced this?

## Eigenvector output flipping ...

Maple 2024

I have a problem with the order  of the Eigenvalues and Vectors flipping. It is a bit random. I only found it trying to understand why a procedure sometimes rotated a conic one way and  then the other. This a really causing a quite a problem, I have only tried this in Maple 2024 so far. I have included screen shots to prove the effect.

 > restart
 >
 > with(LinearAlgebra):
 >
 > M:=Matrix([[0,1],[1,0]]);
 > a,b:=Eigenvectors(M)  ;#click here and press enter again possible a 4 times, output can filp
 >
 (1)
 > a
 (2)
 > b
 (3)
 >