## 1107 Reputation

12 years, 100 days

## Table output question....

Maple 2021

I was taking notes from a video and fromatting them in a table so I could pring them.

I an using the commands in the context panel to keep things neat.

I can't get this to work for the last row of the table. when I select the equation, the right context panel changes to information about the table and the commands for manipulating the equations are not available. This occurs on the tenth row or later.

I have since tried interface(rtablesize = [12,12]) but that didnt help.

If I run the document I can get the 10th row to solve by displaying the output first and then using the commands from the context panel

```2*a[0]*a[9]*c[2] + 2*a[1]*a[8]*c[2] + 2*a[2]*a[7]*c[2] + 2*a[3]*a[6]*c[2] + 2*a[4]*a[5]*c[2] + a[9]*c[1];

8
1430 c[2]
---------- + a[9] c[1]
16
c[1]

"(->)"

solve( 1430*c[2]^8/c[1]^16 + a[9]*c[1]=0, a[9] );
8
1430 c[2]
- ----------
17
c[1]

"(->)"

a[9] := -1430*c[2]^8/c[1]^17: 'a[9]';
a[9]

```

## Factorial display question...

Maple 2021

I trying to display factorials in a matrix as e.g 6!4!/5! not 144.

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## Is it possible to Add/sum by mapping mul...

Maple 2021

I want to sum a series by getting multiple values from a list.  Based on the list L I was trying

add(A, [m2, m3] in L)   This seem to have dissapeared from the document but the error message remains.

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I found this code by Kitonum 16740  https://www.mapleprimes.com/questions/138955-How-Do-I-Create-A-Variable-Number-Of-Nested-Loops-

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Instead of using I would like to map m2 and m3 to the values in list L and sum them. This should give a method for having a variable number of loops

I tried variants off without success

for the next higher order would need to map m2,m3, m4 to the generated list.

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## Sums as hypergeometric. Why?...

Maple 2021

I have two summations that Maple converts to hypergeometric outputs. Is there a way to stop that?

I dont know how to get Maple to expand the Hyper geometric output for a given walue of N

if the value of N is defined first the output is as I would expect.

The real problem, the sumations are nested and when I get to four nested sums Maple sits there for hours trying to evaluate the general case.

I have only included the first 2 summations.

Any insights on this would be appreciated.

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## How to rearrange an equation by coeffici...

Maple 2019

I am trying to rearrange the elements of an equation by the absolute value of their coefficients. eg -3y^2 x+2x z^2+6z^2 to

2x z^2 -3y^2 +6z^2