Why Mathcad Prime 3.1 gives the wrong answer?

[ViktorKorobov]

Viktor

[Werner_E · Accepted solution]

Yet anothing they have broken in Prime.

I have no explanation but the problem seems to be located here:

[Werner_E]

Here's another "nice" effect (symbolic eval not done inline but in a separate region):

[Werner_E]

And here the "workaround".

At least we see the correct result - valid for .... x in R or not ???? Crazy!

OK, lets Prime grow up the next decades and go back to Mathcad 15 for serious work.

[ValeryOchkov]

...go back to Mathcad 15, which will be not support in new version of Windows.

[Werner_E]

Valery Ochkov wrote:

...go back to Mathcad 15, which will be not support in new version of Windows.

Of course you are right - going back to (better: staying at)  MC15 is just an interim solution until switching to some other software.

Prime and unfortunately also Mathcad both are dead ends.

[ViktorKorobov]

However, Prime is not completely hopeless. We can use the general solution to get a particular solution.

Viktor

[Werner_E]

Clever, but nonetheless you had found a bug in Prime.

I was surprised to see that the symbolics reacts differently in Prime than in MC15 as I thought nothing was changed here during "development" (can we really call it that?) of Prime. Obviously they managed to break some parts there, too.

[ValeryOchkov]

Кто из вас без греха, пусть первый бросит в нее камень

[Werner_E]

Feel free to call, what they do with Prime, software development - I can't.

[ValeryOchkov]

Кто из вас без греха, пусть первый бросит в нее камень

The one ho is without sin is the one who should cast the first stone

[Werner_E]

You already posted that and I can use Google translate. Therefore my answer above.

You don't have to be an engineer being able to build a var from scratch just to be allowed to criticize a company delivering broken cars 😉

[ValeryOchkov]

Werner Exinger написал(а):

You already posted that and I can use Google translate. Therefore my answer above.

You don't have to be an engineer being able to build a var from scratch just to be allowed to criticize a company delivering broken cars 😉

I say in this cases:

Я не курица и не могу нести яйца, но понять, что это яйцо не свежее, я могу даже не пробуя его!

[ValeryOchkov]

Maple\

[ViktorKorobov]

Viktor

[ValeryOchkov]

[mvenich]

Maple...

[VladimirN]

What version of Maple?

[mvenich]

Maple 2016. May work in other versions