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EQUATOR.H32
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1990-04-04
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32
INTEGRATION
The integral of a function f(x) for the interval [a,b] ( a is the left
endpoint and b is the right endpoint ), written f(x)dx, is the area
under the graph of f(x).
You will be requested to enter
the function f(x),
left and right endpoints,( interval [a,b] ),
maximum desired error
Numerical analysis is then used to approximate the area to within
a given tolerance.
The specific method used for the approximation is called Adaptive
Quadrature ( using Simpson's rules for whole and half intervals ). This
method breaks the interval [a,b] into subintervals, using Simpson's
formula on each interval, until each subinterval has an error less than
a specified tolerance.