%typeset_mode True
g(x) = (1/2)*(x^-3)
g(x)
2x31
integral(g(x),x)
−4x21
integral(g(x),x,4,7)
313633
f(x) = e^(2*x)
integral(f(x),x)
21e(2x)
var('p')
p
integral(p/x^2,x,1,infinity)
p
a(n) = 7*(1/3)^(n-1) def s(k): return sum([a(n) for n in [1..k]])
s(1)
7
s(2)
328
s(3)
991
N(s(300), digits=300)
10.4999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999232969058979478899263634287904603903715132946830131371516323094187830771103701176980793206438309762743975141858970313405006263004769472620836663078953524558