4 years, 9 days

## Why a separate input line is required to...

Maple

 (1)

 (2)

 (3)

 (4)

I have expected elementwise and map to be effective. Why aren't they for this example?

(Evaluation at a point (see help(D)): In output (3) it is the first time that I see a composition of the D operator with the Eval function (vertical bar). Is that an undocumented feature or part of an answer that I could not figure out myself?)

## How to integrate this ode and how to sub...

Maple

The example below is an attempt to solve a boundary value problem (BVP) without manually replacing terms in expressions and some questions where there might be room for improvement. (Only the first integration step is shown to keep it short)

My objective is to have clean Maple input with minimal manual interventions or low-level manipulations (such as using op and similar commands).

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 (1)

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 (2)
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...not a clue for me

Since I know the result: Multiplying by  to make integration work.  Q1: Are there other ways to integrate a single step without a priori knowledge?

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 (3)

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 (4)

Boundary condition for

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 (5)

(4) evaluated at the boundary

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 (6)

Q2: How to simplify expression (6) with (5) using Maple commands to get this expression for the integration constant

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 (7)

Some attempts

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 (8)

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 (9)

Doing it manually

 (10)

or

 (11)

 (12)

Q3: Are there ways to prevent commands evaluating to which might suggest incorrectly a new independent variable?

Q4: In (6), why is s = L sometimes in brackets {} ?

## Why is the output of an inert integral n...

Maple

I am updating older files.

Executing with the attached code snippet from a worksheet created with Maple 16 outputs for an inert integral

Why is that and how can I fix my old worksheets to make them work with Maple 2023?

Maybe related: Execution with (or return) does not evaluate the document blocks. When all document blocks are expanded with "right click show command" the cursor does not advance to the next execution group. I can't remenber if this behaviour was allways like this or has changed.

A suggestion for Maplesoft: I have stopped using document blocks with hidden code since hiding and showing commands requires too much time (to many clicks and mouse movements). A simple double click on the marker of the document block could facilitate hiding and showing code allot.

Output_of_Int_not_in_2d.mw

## Why do I get this sequence returned from...

Maple 2023
```alias(b = JacobiCN(sqrt(2)*sqrt(x), sqrt(2)*_Z/2)^2);
lessthan, b

```

I could not find an explanation on the help page.

I would have expected simply b as the return value.

Update:
A worksheet that generates the output

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 (2)

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 (4)