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From: Raj Kamal on 10 Aug 2010 02:27
I tried to solve an equn. like

>>solve('5*x^2+2*x+3')

but instead of the answer the error comes out like
:MEX Point entry file is missing.

the error refers to some file named maple.m

Does anyone knows how to solve thi?

With regards
Raj
From: Steve Amphlett on 10 Aug 2010 04:47
"Raj Kamal" <rustyraj18(a)gmail.com> wrote in message <i3qrge$e68$1(a)fred.mathworks.com>...
> I tried to solve an equn. like
>
> >>solve('5*x^2+2*x+3')
>
> but instead of the answer the error comes out like
> :MEX Point entry file is missing.
>
> the error refers to some file named maple.m
>
> Does anyone knows how to solve thi?

What were you hoping for?


In Matlab I get this:

>> roots([5 2 3])

ans =

-0.2000 + 0.7483i
-0.2000 - 0.7483i


If you want a symbolic answer, you'll need a symbolic tool (maple, Maxima, muPAD, etc). You can buy a symbolic toolbox for Matlab, which (I believe) uses either Maple or MuPAD. I suspect you are missing a toolbox. Note, with (free) Maxima I get this:

(%i1) solve(5*x^2+2*x+3);
sqrt(14) %i + 1 sqrt(14) %i - 1
(%o1) [x = - ---------------, x = ---------------]
5 5
From: Yi Cao on 10 Aug 2010 05:20
"Raj Kamal" <rustyraj18(a)gmail.com> wrote in message <i3qrge$e68$1(a)fred.mathworks.com>...
> I tried to solve an equn. like
>
> >>solve('5*x^2+2*x+3')
>
> but instead of the answer the error comes out like
> :MEX Point entry file is missing.
>
> the error refers to some file named maple.m
>
> Does anyone knows how to solve thi?
>
> With regards
> Raj

Try 'which solve' to check what is wrong.

Yi
From: Raj Kamal on 10 Aug 2010 13:52
"Steve Amphlett" <Firstname.Lastname(a)Where-I-Work.com> wrote in message <i3r3m7$lhb$1(a)fred.mathworks.com>...
> "Raj Kamal" <rustyraj18(a)gmail.com> wrote in message <i3qrge$e68$1(a)fred.mathworks.com>...
> > I tried to solve an equn. like
> >
> > >>solve('5*x^2+2*x+3')
> >
> > but instead of the answer the error comes out like
> > :MEX Point entry file is missing.
> >
> > the error refers to some file named maple.m
> >
> > Does anyone knows how to solve thi?
>
> What were you hoping for?
>
>
> In Matlab I get this:
>
> >> roots([5 2 3])
>
> ans =
>
> -0.2000 + 0.7483i
> -0.2000 - 0.7483i
>
>
> If you want a symbolic answer, you'll need a symbolic tool (maple, Maxima, muPAD, etc). You can buy a symbolic toolbox for Matlab, which (I believe) uses either Maple or MuPAD. I suspect you are missing a toolbox. Note, with (free) Maxima I get this:
>
> (%i1) solve(5*x^2+2*x+3);
> sqrt(14) %i + 1 sqrt(14) %i - 1
> (%o1) [x = - ---------------, x = ---------------]
> 5 5

thnx Yi I sorted it out..
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