var('x')
f=x+x^2;
show(f)
for x in range(1,10):
    if f(x)==f(-x):
        print "even function"
        break
    elif f(x)==-f(-x):
        print "odd function"
        break
    else:
        print "neither odd nor even"
        break

Kreyszig-10.4-2-U (last edited 2010-12-18 07:14:42 by Jrachit)