Changes

Solving a definite integral usually has two main steps: [[integration]] and [[subtraction]].

Solving a definite integral usually has two main steps: [[integration]] and [[subtraction]].

Sometimes approximations, such as the [[Riemann Integral]] or [[Simpson's rule]] are used. These approximations are used when:

Sometimes approximations, such as the Riemann Integral or [[Simpson's rule]] are used. These approximations are used when:

*The exact answer is not needed, only a close approximation. (Common in [[Engineering]])

*The exact answer is not needed, only a close approximation. (Common in [[Engineering]])

*The rule for integration is very complex. (Such as <math>\int e^{x^2}\,dx</math>)

*The rule for integration is very complex. (Such as <math>\int e^{x^2}\,dx</math>)