## guide on solving and graphing?...

hi,

What command can I use to solve the attached equation and draw its graph?

 (1)

## What does abs(F) mean in package Physics ?...

I am a newbie in the use of the Physics package.
As I'm interested in modeling dynamic articulated systems, I began reading the example about Mechanics (Statics).

My question is quite simple: let F some vector force of components a * _i and b * _j , what does abs(F) represent?

I naively thought that abs(F)  was the modulus of F and expected it to be non negative. But I get some negative values (as in the tutorial example for some values of angle alpha.

## How I can remove Root of in solving process...

How I can ontain results without Rootof !!

Thanks

help.mw

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 (5)

## What is the meaning of this error in pdsolve comma...

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 (10)

Help me in finding the solution of system eq1 and eq2.

## More than 10 rows and columns of the matrix, on wo...

Maple 2020 beginner user - matrices shows 10 rows and columns on worksheet, by default. How to increase this value up to 16 and more? Of course, there is possibility (browse matrix) to see all values and export to Excel also, but better to see all 16 on worksheet.

## How can I search multiple worksheets for a specifi...

I would like to know which of the more than 100 worksheets I have in a Windows 11 folder execute the events operation within dsolve numeric.

Is there a way to identify which of this large number of Maple worksheets contain a given phrase e.g. "events"?

## Unable to getdata from a plot error "Warning, data...

Warning, data could not be converted to float Matrix

## How the Integral can be solved?...

Hi friends

Could you please give hints to solve the integral

int(exp(I*k*x)*sech(x),x=-infinity..infinity)

Thanks

## You can plot a “rose” in polar coordinates with th...

) Write a procedure that generates a plot of a ‘rose’. If the number of petals is even, have your procedure colour in the petals aquamarine, if the number of petals is odd, colour in the petals pink.

Test your procedure by generating two flowers, one with an even number of petals and one with an odd number of petals.

## Why Maple returns empty solution?...

Why Maple returns empty solution (see eq. (5))? Also, is it possible that Maple not only gives us the explit solution but also the solution steps?

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## Why is text output to a file not working (Linux)?...

Hi,

I am fairly new to Maple and trying to figure out how to output text to a file, but nothing seems to be working. I would like to generate code files for Julia using Maple expressions.

I am in worksheet mode, using a 'code edit' region. If I do:

`jlfile := fopen("./juliafunc.jl",WRITE,TEXT);`

then the file is created, as intended. However, neither of the following commands seem to write any text to the file:

```writeline(jlfile,"This is a test.");
fprintf(jlfile,"This is a test.\n");```

(these are similar to the examples in the dcumentation)

Is there something I am doing wrong? I am using Maple 2020 on Linux.

## How to remove spaces and convert output to plainte...

Hi

My third-party soft is fussy: it will only accept pasted plaintext, with no spaces in between, for example:

1407,1411,2,1408,1409,0
1407,1408,2,1409,1411,0

#My input is
ans1 := [1407, 1408, 2, 1409, 1411, 0], [1407, 1409, 2, 1408, 1411, 0], [1407, 1411, 2, 1408, 1409, 0];

#I am "trying" to remove the whitespace and convert it to plain text

with(StringTools):
for i to 3 do
seq(parse(DeleteSpace(convert(ans1[i][j],string))),j=1..6);
next i
od;

#But the whitespace is still there....

lprint(%%%);lprint(%%);lprint(%)
ans1 := [1407, 1408, 2, 1409, 1411, 0],

[1407, 1409, 2, 1408, 1411, 0], [1407, 1411, 2, 1408, 1409, 0]

1407, 1408, 2, 1409, 1411, 0

1407, 1409, 2, 1408, 1411, 0

1407, 1411, 2, 1408, 1409, 0

Binary_search.mw

## Procedure for computing these doubles combinations...

Hi

I'm trying to automate this production of doubles combinations with a set scoreline in between. The minimum is 4 players, but we could have many more players, producing many combinations.

example: 4 players, set score 2-0 for each match

with(combinat):
DBL[1],2,DBL[6],0;DBL[2],2,DBL[5],0;DBL[3],2,DBL[4],0

#and the reverse
DBL[6],2,DBL[1],0;DBL[5],2,DBL[2],0;DBL[4],2,DBL[3],0

#the output contains square brackets. How do I remove them?