I took out the eval and for some reason it is working.
Robert, this is function in my API (AlgCalc)
http://pirsqrt.com:1843/
If I would give it to you would you show me how to get JSmath to
work? I have talked to you before. You said you were too busy. I
have loaded load.js, but when it goes for another .js file it cannot
find.
On Sep 1, 12:37 pm, Mikie <thephantom6...@hotmail.com> wrote:
> Yes, Robert eval is doing the rounding. How do I fix it?
>
> On Sep 1, 12:31 pm, Mikie <thephantom6...@hotmail.com> wrote:
>
>
>
> > I have tried SR. I get a malformed value. Yes, I understand the
> > problem with eval. Do you have any suggestions on how to get the
> > right value into maxima.solve?
>
> > On Sep 1, 11:32 am, Robert Bradshaw <rober...@math.washington.edu>
> > wrote:
>
> > > On Tue, 1 Sep 2009, Mikie wrote:
>
> > > > When I run the server with the function above and the following string
> > > > from a text box I get
> > > > [y=-1,x=0]. The string is "[3*x-y-1,x+(1/3)*y]"
>
> > > > It is changing the input value to [3*x-y-1,x]
>
> > > 1/3 = 0 in Python. Also, I hope you realize how dangerous
>
> > > eval("random string someone gave you from the web") is!
>
> > > - Robert
>
> > > > On Sep 1, 10:38 am, Mikie <thephantom6...@hotmail.com> wrote:
> > > >> Sorry, wrong function
>
> > > >> def MSolveSys(syss):
> > > >> eqns=eval(syss)
> > > >> solns=maxima.solve(eqns)
> > > >> return solns
>
> > > >> On Sep 1, 10:31 am, Jason Grout <jason-s...@creativetrax.com> wrote:
>
> > > >>> Robert Bradshaw wrote:
> > > >>>> On Sep 1, 2009, at 9:17 AM, Mikie wrote:
>
> > > >>>>> Here is function I am using to solve systems of linear equations.
>
> > > >>>>> def MSolveSys(syss):
> > > >>>>> eqns=eval(syss)
> > > >>>>> solns=maxima.solve(syss)
> > > >>>>> return solns
>
> > > >>>>> Works great in the notebook, but when I put it in a Python script it
> > > >>>>> rounds the coeficients of the variables and thus produces bad
> > > >>>>> solutions.
>
> > > >>>> Perhaps eval here is the culprit. You might have to parse it a bit
> > > >>>> yourself. SR("...") will parse expressions.
>
> > > >>> Mikie effectively isn't using "eval", right? That line (and the
> > > >>> "eqns"
> > > >>> variable) is not being used.
>
> > > >>> Jason
>
> > > >>> --
> > > >>> Jason Grout- Hide quoted text -
>
> > > >>> - Show quoted text -- Hide quoted text -
>
> > > >> - Show quoted text -- Hide quoted text -
>
> > > - Show quoted text -- Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to
sage-support-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/sage-support
URLs: http://www.sagemath.org
-~----------~----~----~----~------~----~------~--~---
