I want to integrate xe^(-4(x^2)) from x=0 to x=1. When i get integral result, result seems not numerical.
我的法典是:
import sympy as sp
def f(x):
return x * sp.exp(-4 * (x ** 2))
x = sp.symbols( x )
integral = sp.integrate(f(x), (x, 0, 1))
print(f Result of analytic integration = {integral} )
产出是:
Result of analytic integration = 1/8 - exp(-4)/8
The return type is an instance of sympy.core.add.Add. You can convert it to float by doing:
>>> integral
1/8 - exp(-4)/8
>>> float(integral)
0.12271054513890822
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