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mbeaumont1-Visitor
1-Visitor
April 9, 2018
Solved

Symbolic solution of an integral

  • April 9, 2018
  • 3 replies
  • 3481 views

Hi friends,

 

I have a quick query regarding symbolic solutions of integrals.

 

While evaluating an integral, Mathcad is returning the following:

 

2018-04-09 10_45_28-PTC Mathcad Prime 4.0 - Untitled-1.png

(note: no variables have been assigned in this worksheet)

Is it possible to force Mathcad to return the exact solution similar to how WolframAlpha does:

 

2018-04-09 10_45_28-PTC Mathcad Prime 4.0 - Untitled-1.png

 

Cheers,

Mike

Best answer by Werner_E

Looks like muPad already fails at the first step

Bild2.png

Here the result of oncle Wolfram

Bild1.png

3 replies

W
Werner_E25-Diamond I
25-Diamond I
April 9, 2018

Better than attaching pictures is to attach the worksheet itself here (you may have to zip it because of a serious bug of this forum software).

Mathcads symbolics (= muPad) does in no way live up to programs like mathematica or Maple.

Have you tried using "simplify" or even "simplify,max" ?

Sometimes it helps to use something like "assume,B=real" or "assume,w>0,L>0" etc.

Otherwise I fear muPad is not capable enough to do the job.

L
LucMeekes23-Emerald IV
23-Emerald IV
April 9, 2018

It is generally very hard to control the output of the symbolic processor.

Here's your definite integral (the indefinite result is much wider):

LM_20180409_Symbolic.png

Success!
Luc

W
Werner_E25-Diamond IAnswer
25-Diamond I
April 9, 2018

Looks like muPad already fails at the first step

Bild2.png

Here the result of oncle Wolfram

Bild1.png

M
mbeaumont1-VisitorAuthor
1-Visitor
April 9, 2018

Thanks Werner. Hopefully this will be improved in the future..

W
Werner_E25-Diamond I
25-Diamond I
April 9, 2018
@mbeaumont wrote:

Thanks Werner. Hopefully this will be improved in the future..

Wishful thinking! I won't hold my breath, though.

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