50g

I am trying to solve three simultaneous equations and I can't seem to
figure out how to do it. I've gone through the manual and keep
getting an error trying to use msolv

I have
M1=p*0^2+q*0+r
M2=p*(L/2)^2+q*(L/2)+r
M3=p*L^2+q*L+r

The answers are p=-3 q=102 and r=-578

Can anyone give me the syntax to get this from a 50g?

I've also tried entering them as vectors and then using solve but it
only gave me the trivial solution (0 0 0)

Thank you.

Yes, I ment MSLV not msolv

--- In 50g@yahoogroups.com, "renystro" <renystro@...> wrote:
>
> I am trying to solve three simultaneous equations and I can't seem
to
> figure out how to do it. I've gone through the manual and keep
> getting an error trying to use msolv
>
> I have
> M1=p*0^2+q*0+r
> M2=p*(L/2)^2+q*(L/2)+r
> M3=p*L^2+q*L+r
>
> The answers are p=-3 q=102 and r=-578
>
> Can anyone give me the syntax to get this from a 50g?
>
> I've also tried entering them as vectors and then using solve but
it
> only gave me the trivial solution (0 0 0)
>
> Thank you.
>

Obviously forgot to give you these...apologies for all the messages.
M1=-578
M2=289
M3=-578

--- In 50g@yahoogroups.com, "renystro" <renystro@...> wrote:
>
> I am trying to solve three simultaneous equations and I can't seem
to
> figure out how to do it. I've gone through the manual and keep
> getting an error trying to use msolv
>
> I have
> M1=p*0^2+q*0+r
> M2=p*(L/2)^2+q*(L/2)+r
> M3=p*L^2+q*L+r
>
> The answers are p=-3 q=102 and r=-578
>
> Can anyone give me the syntax to get this from a 50g?
>
> I've also tried entering them as vectors and then using solve but
it
> only gave me the trivial solution (0 0 0)
>
> Thank you.
>

Ok, I've figured it out. I apoligze for all the messages, if someone
has a better way to do it, please let me know. Here is what I did

I made a vector with the three equations (l is 34)
[-578=p*0^2+q*0+r 289=p*(l/2)^2+q*(l/2)+r -578=p*l^2+q*l+r]
then I made another vector
[p q r]
then I used s.solv, and SOLVE.

This generated the values I was looking for,
p=-3468/l^2 q=3468/l and r=578

Thank you and sorry again about all the messages.

--- In 50g@yahoogroups.com, "renystro" <renystro@...> wrote:
>
> Obviously forgot to give you these...apologies for all the messages.
> M1=-578
> M2=289
> M3=-578
>
> --- In 50g@yahoogroups.com, "renystro" <renystro@> wrote:
> >
> > I am trying to solve three simultaneous equations and I can't
seem
> to
> > figure out how to do it. I've gone through the manual and keep
> > getting an error trying to use msolv
> >
> > I have
> > M1=p*0^2+q*0+r
> > M2=p*(L/2)^2+q*(L/2)+r
> > M3=p*L^2+q*L+r
> >
> > The answers are p=-3 q=102 and r=-578
> >
> > Can anyone give me the syntax to get this from a 50g?
> >
> > I've also tried entering them as vectors and then using solve but
> it
> > only gave me the trivial solution (0 0 0)
> >
> > Thank you.
> >
>

> This generated the values I was looking for,
> p=-3468/l^2 q=3468/l and r=578
>
> Thank you and sorry again about all the messages.

Glad we could help. :o)

TW