Problems using Math Module

[Rafael T.]

Hey,

I'm trying to make a simple application that should be able to resolve a second degree equation. The script is working but where it should be displayed the result, it's displaying NaN

So, here is the code:

import appuifw
from math import sin,cos,tan,sqrt,log

op=1


#Calculate
while (op!=2):
    
     a = float(appuifw.query(u"A:", "number"))#This number should multiply x^2
     b = float(appuifw.query(u"B:", "number"))#This number should multiply x
     c = float(appuifw.query(u"C:", "number"))#This number should  be alone

#Example: x^2-x-20=0      a:1  b:-1  c:-20    
 
#Delta

     delta=(pow(b,2))-(4*a*c)#Delta formula

     if (delta<0):

         print (u"Delta Negativo") #The equation is impossible
         
#Baskara formula
     else:
         x1=((b*-1)+sqrt(delta))/2*a #First possibility for X
         x2=((b*-1)-sqrt(delta))/2*a #Second possibility for X
        
         #The equation is possible

     continueoption=appuifw.popup_menu([u"%.1f" % (x1), u"%.1f" % (x2), u"Quit"])
     if(continueoption==1):op=2

Any ideia of why it's displaying NaN?

I used from base this article:

http://wiki.forum.nokia.com/index.ph...ple_calculator


Any help will be very useful.

Thanks!!!

[Rafael T.]

Problem Solved =)

[shubhendra]

Hey Rafael T. please tell how did you solve the problem, so that it can be handy for me and everyone if someone encounters same problem.

[Rafael T.]

I solved by using A,B and C as a text instead of number ... so it can be negative!