C_R

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These are questions asked by C_R

This is about avoiding that automatic simplifcation removes a factor of "1" before a unit.

Example output with removed factors:

Readers of technical notes not familar with Maple interprete the above missing values before units as layout errors.
Also reading it (e.g. with a screen reader) sounds strange: "m_l equals kg" or "m_1 of kg".  As a work around a float one (i.e.: 1.) can be used, which in some instances does not look as nice as

To improve the above I thought of an inert "1" or an inert multiplication that could be removed by the value command in subsequent calculations (not necessarily visible in a document to the reader when the input is hidden).
I could not find a way for an inert "1". With inert multiplication using %* a grey asterix is printed

Can we make the grey multiplication symbol invisble?

Related discussion on 0 mm and 1 mm

https://www.mapleprimes.com/questions/241946-Round-With-Units#answer313597

Maple 2026 print layout

PDF created with print -> Adobe pdf printer -> save to file

Is that related to the attached worksheet or my installation?
If that is not reproducible on other installations, can I someone provide a file that prints correctly to test my installation?

Anything I can do about the mixed up fonts?

pdf_print.mw

Other question: Where is the pagesetup in Maple 2026? Maple shows in the printlayout a pagebreak at about 80% of the displayed page. AI could not tell me

(edit) where the page setup is to adjust the page size.

In 2-D Math input:
In a product of more than two factors space is not allways sufficient to delimite factors when one of the factors is of type numeric.

Just for my interest: Is there a reason or a rule for that?

2-D Math: space interpreted as multiplication

a*b*c

a*b*c

(1)

2*b*c

2*b*c

(2)

With numbers this does not work in these cases

"a 2 c"

Error, missing operation

"a 2 c"

 

"a b 2"

Error, missing operation

"a b 2"

 

Multiplication operators are required

"2 2 c"

 

2*a*c

2*a*c

(3)

2*a*b

2*a*b

(4)

NULL

Download Missing_operation.mw

Has anybody seen something like that? I do not use Maple 2026 very often.

Does this vanish when the document is executed on another machine?

 

repeated_equation_labels.mw

Update:

  • expanding the document block by "show command" makes the equation labels disappear.
  • copying the input to another document block seems to fix the problem

This is a follow-up question from here concerned with rearraging (not simplifying) an expression for an easier visual comparision.

restart

In a Maple document I want to demonstrate (easier to follow from the output without the knowledge of Maple commands) that the following expression

expr := sqrt(2)/(sqrt(-beta^2+1)*sqrt(2+(-x-1)*beta^2))

2^(1/2)/((-beta^2+1)^(1/2)*(2+(-x-1)*beta^2)^(1/2))

(1)

can visually match the integrand of this ellpitic integral

FunctionAdvisor(definition, EllipticF)

[EllipticF(z, k) = Int(1/((-_alpha1^2+1)^(1/2)*(-_alpha1^2*k^2+1)^(1/2)), _alpha1 = 0 .. z), MathematicalFunctions:-`with no restrictions on `(z, k)]

(2)

This can be done with following substitution

x = 2*k^2-1

x = 2*k^2-1

(3)

subs(x = 2*k^2-1, 2^(1/2)/((-beta^2+1)^(1/2)*(2+(-x-1)*beta^2)^(1/2)))

2^(1/2)/((-beta^2+1)^(1/2)*(-2*beta^2*k^2+2)^(1/2))

(4)

simplify(2^(1/2)/((-beta^2+1)^(1/2)*(-2*beta^2*k^2+2)^(1/2)))

1/((-beta^2+1)^(1/2)*(-beta^2*k^2+1)^(1/2))

(5)

Since the substitution comes without explanation, I though about rearranging expression (1) by Maple commands in a way that facilitates visual pattern matching.
How to collect the factor 1+x in (1) leading to  sqrt(2)/(sqrt(-beta^2+1)*sqrt(2-(1+x)*beta^2))

It looks as one would write by hand.

 

At a glance, this much easier suggest that k^2 = (1+x)*(1/2).

Download Collect_one_plus_x_-_02.mw

(Maple 2025.2 only for easier editing. Results are the same with Maple 2026)

Original Post - Collect_one_plus_x.mw

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