Date: Nov 30, 2012 1:16 PM
Author: Steven Lord
Subject: Re: Eval and long format answer
"Nasser M. Abbasi" <firstname.lastname@example.org> wrote in message
> On 11/30/2012 11:09 AM, Nasser M. Abbasi wrote:
>> On 11/30/2012 10:48 AM, Genevieve Masson wrote:
>>> Hi :)
>>> How to avoid that type of answer (i mean how to evaluate the fractions)
>>> Vg2 =
>>> acos(5784835530832562/5514948135819145 -
>>> (18014398509481984*((3937*sin(thCerc))/20000 - AE*sin(alpha))^2)
>> First you need numbers for those symbols you have there: thCerc,AE,alpha
>> use subs().
>> Then you should be able to just use double() around the whole thing.
> Also, you can try simplify on the symbolic expression. It helped
> EDU>> syms thCerc AE alpha
> EDU>> VG2=... what you had above...
> EDU>> simplify(VG2)
> acos(12389/11811 - (17592186044416*(3937*sin(thCerc) -
If you just want to display approximations to the numeric values without
substituting in for the symbolic variables, use VPA.
To contact Technical Support use the Contact Us link on