Your graphing calculator can be used to evaluate definite integrals: =fnInt(f (x),x,a,b) Math 9
Example: MATH (9:) fnInt( MATH
Numerical Integration MATH (9:) fnInt( fnInt(f (x), x, a, b) gives Try , compare to the computation using the Fundamental Theorem MATH
Numerical Integration
Numerical Integration You can also estimate the value of the definite integral while looking at a graph. First graph
Numerical Integration CALC (2nd TRACE) #7 This is the definite integral even though the notation is wrong.
Numerical Integration Enter the Lower Limit Press 1 then ENTER
Numerical Integration
Numerical Integration Then the Upper Limit Press 3 then ENTER
Numerical Integration Then the Upper Limit Press 3 then ENTER There’s your answer!