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07-27-2013
06:56 PM

07-27-2013
06:56 PM

Re: Given_Find( ) solve block & Series Equation.

The question : I think of mine, above, there is something wrong and mine is not reliable (solution) ?

Not exactly sure what you think that is wrong.

As already stated the problem is that the solve block often has problem if you try to use the individual vector components as parameters of "find". You replaced the vector elements by greek variables and that way find works.

Solve block will work with complete vector equations, though, but it would be quite a task to rewrite your system as vector equation, if possible at all. So its far easier to use "normal" variables or resort to the symbolic "solve".

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07-27-2013
07:00 PM

07-27-2013
07:00 PM

Re: Given_Find( ) solve block & Series Equation.

That could be an explanantion, but then I am confused about the error meassage window which was posted by Loi.

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07-27-2013
07:11 PM

07-27-2013
07:11 PM

Re: Given_Find( ) solve block & Series Equation.

I am confused too. I got the same error message when I define V:=Find(...) -->

But another error message when using only Find(...) -->

The first one might be a bug.

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07-27-2013
08:01 PM

07-27-2013
08:01 PM

Re: Given_Find( ) solve block & Series Equation.

MihaiMoraru wrote:

I am confused too. I got the same error message when I define V:=Find(...) -->

But another error message when using only Find(...) -->

Just gave it a try and the same here.

I would call it a bug, too - maybe even both errors as I see no good reason why vector elements should not work as solve block variables.

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07-27-2013
08:34 PM

07-27-2013
08:34 PM

Re: Given_Find( ) solve block & Series Equation.

Hello, again.

I have still a small query :

Vector in the oval, it should have only parentheses, but now that vector has also the bracket.

The question : what does that mean ?

Regards.

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07-27-2013
08:42 PM

07-27-2013
08:42 PM

Re: Given_Find( ) solve block & Series Equation.

I think it means that Mathcad has to do one more operation. But this does not change the end result. It can be removed. Please see below and attached.

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07-27-2013
09:02 PM

07-27-2013
09:02 PM

Re: Given_Find( ) solve block & Series Equation.

Thanks, MihaiMoraru.

Regards.

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07-28-2013
02:36 AM

07-28-2013
02:36 AM

Re: Given_Find( ) solve block & Series Equation.

Vector in the oval, it should have only parentheses, but now that vector has also the bracket.

The question : what does that mean ?

I would say that it means you typed a pair superfluous paranthesis. Its not a vector bracket. Mathcad shows brackets if you nest parenthesis, like in

BTW, you could just use

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07-28-2013
10:53 AM

07-28-2013
10:53 AM

Re: Given_Find( ) solve block & Series Equation.

Thanks, Werner.

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07-28-2013
11:03 AM

07-28-2013
11:03 AM

Re: Given_Find( ) solve block & Series Equation.

Hello, again.

I have still small another query :

The question : Need help with the reason : the first one works and the second doesn't.

Best Regards.