The message below is being cross-posted from the LogoForum. Please
reply here at comp.lang.logo and it will be cross-posted back to the
LogoForum. The original author of this message is
mjsandy@[EMAIL PROTECTED]
wrote:
'My general advise would be to fix what
kind of equations will be used.
If they are only y=a*x^2+b*x+c, then
it is better to solve the general
equation symbolically, and implement
the final formula as a program. For
example, this equation is nice,
because it can be solved symbolically
(search the web for "Quadratic Equation").
For other equations there are other
methods for finding the roots - they
all have pros and cons, so there is
no a general solution for all equations.'
------------------------------------------------------
I agree.
Jennifer, could you indicate exactly
what you want in the way of solving the
equations. An approximate graphical
method and/or a programmed algebraic
solution?
Mike
> The message below is being cross-posted from the LogoForum. Please
> reply here at comp.lang.logo and it will be cross-posted back to the
> LogoForum. The original author of this message is
pavel@[EMAIL PROTECTED]
>
>
> Mike Sandy wrote:
> > Several people have responded to this e-mail
> > but no one has given a method for solving
> > the equation.
> > (Pavel does say:
> > Some equations have nice and easy
> > solutions, others can be solved only approximately. )
>
> My general advise would be to fix what kind of equations will be used.
>
> If they are only y=a*x^2+b*x+c, then it is better to solve the general
> equation symbolically, and implement the final formula as a program. For
> example, this equation is nice, because it can be solved symbolically
> (search the web for "Quadratic Equation").
>
> For other equations there are other methods for finding the roots - they
> all have pros and cons, so there is no a general solution for all
> equations.
>
> An interesting (and easy) application would be to find the roots
> half-manually. The computer draws the function and puts numbers on the
> axes. The user looks at the images and decides whether to zoom in or
> zoom out. Users can easily see places where roots might be, so they can
> zoom in these areas of interest (multiple times if needed) until they
> find the root with enough approximation.
>
> -Pavel
>
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