HP 40gs - Manual (Page 70)

3-6 Function aplet
16.Press to accept using F2(x) = (x + 3)
2 – 2 as the
other boundary for the integral.
17. Choose the end value
for x.
1
The cursor jumps to
x = –1 on the linear
function.
18.Display the numerical
value of the integral.
Note: See “Shading
area” on page 3-11
for another method of
calculating area.
To find the
extremum of the
quadratic 19. Move the cursor to the quadratic equation and find
the extremum of the quadratic.
Select Extremum
The coordinates of the
extremum are
displayed at the
bottom of the screen.
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