Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
p
l
o
t
f
p
%
4
1
=
p
2
B
D
e
$
1
,
p
%
5
o
n
7
9
7
-
6
4
4
<
9
3
Math Input
Natural Language
Math Input
