"PARI failure!" What does that mean ?

[lvl107]

Hello Everyone.
From :

To : "PARI failure!" What does that mean ? ( MC15 )
Thanks in advance for your time and help.
Best Regards.
Loi

[LucMeekes · Accepted solution]

It means that you have found a way to trigger the error detection mechanism in the symbolic processor (mupad) of your Mathcad 15.

If you are curious about the answer to your expression (Mathcad 11/Maple):

I find the simple answer of factor better:

Success!
Luc

[lvl107]

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@LucMeekes wrote:

It means that you have found a way to trigger the error detection mechanism in the symbolic processor (mupad) of your Mathcad 15.

If you are curious about the answer to your expression (Mathcad 11/Maple):

I find the simple answer of factor better:

Success!
Luc

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Many thanks, Luc.

But I'm curious about the answer to my expression of (Mathcad 11/Maple):

   Best Regards.

        Loi.

[Werner_E]

You sure already found out that its the last modifier ("factor") which throws that error:

Would be interested to see how the current muPad (owned by MathWorks now, makers of MatLab) deals with this expression.

However, I am very surprised and wonder where you still get this unbridled confidence that Mathcad could actually be able to simplify your expressions in the desired way. 🙂

Here are the result of Prime 10 (symbolic processor is freeCAS/Axiom)

And in case you are interested, here is what "uncle Wolfram" is able to come up with:

simplification by Wolfram|Alpha