Revision history [back]
 | 1 | initial version |
Two issues here:
1) Sage is trying to evaluate the sum command as if it is a Python expression. So, to turn it into a function, you can do:
f=lambda x: add([.25^(100-i) * .75^(i) * binomial(100,i) for i in range(0, x)])
2) The plot command tries to plot at non-integer points, so your command will not plot. You can try the following:
pts=[point([x,f(x)]) for x in range(1,101)]
p=add(pts)
show(p)
