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Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X

Unequal results.

-MFra-
21-Topaz II

Unequal results.

Hello everyone,
is there any way to get the correct symbolic answer? from the calculation, it turns out that Wolfram's answer is correct, and that of M15 is not; see photo:

imprecisone.jpg

1 ACCEPTED SOLUTION

Accepted Solutions
LucMeekes
23-Emerald III
(To:-MFra-)

This better?

LucMeekes_0-1596469020839.png

Mathcad 11, of course.

 

Luc

View solution in original post

3 REPLIES 3

Mathcad ln

Mathematica log

LucMeekes
23-Emerald III
(To:-MFra-)

This better?

LucMeekes_0-1596469020839.png

Mathcad 11, of course.

 

Luc

Werner_E
24-Ruby V
(To:-MFra-)

As it looks neither MuPad (in MC15, 14), nor Maple (in MC 11, see Luc's answer) nor Primes new symbolic engine are able to give you the symbolic result which WA arrives at.

 

But you sure have found a bug in MuPad, as its symbolic and subsequently its numeric result 0.43239... is wrong.
Primes new symbolic, while in some respects even weaker than muPad, does not suffer from this bug.

Werner_E_0-1596478796006.png

 

BTW, the symbolic result given by MC11's Maple (see Luc's picture) is equivalent with the symbolic result of Primes new symbolic engine, given that

Werner_E_0-1596479212020.png 

and Primes new symbolic on the other hand is not able to do this simple simplification

Werner_E_1-1596479379335.png

 

 

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