Integrating Equations - HP 35s User Manual

Integrating Equations

Many problems in mathematics, science, and engineering require calculating the
definite integral of a function. If the function is denoted by f(x) and the interval of
integration is a to b, then the integral can be expressed mathematically as
The quantity I can be interpreted geometrically as the area of a region bounded by
the graph of the function f(x), the x–axis, and the limits x = a and x = b (provided
that f(x) is nonnegative throughout the interval of integration).

The operation (∫ FN) integrates the current equation with respect to a specified
variable (∫  d_). The function may have more than one variable.
b
∫
I f
a
f (x)
I
a
(x) dx
x
b
Integrating Equations
8
8-1