Casio fx-CG50 - Page 5

Page | 5
Feature
Useful for…
Steps / key presses
Screen
Checking the area under
a curve, or the area
between a curve and a
line
Press Ly to get the
function, and then choose u
to go to the next page. Then
choose e for the integral.
Within this you can choose
 which gives the area
under a curve between any
limits that you choose yourself
 which gives the area
under the curve between the
roots of the function
 which gives the area
between a line and a curve
Area under a curve between two
limits:
Area under a curve between two
roots of the equation:
Area between a line and a curve:
Draw a tangent to a
curve.
Hint: to show the value
of the derivative (the
gradient), use SETUP
(Lw) and scroll to
DERIVATIVE, then choose
ON.
Press Lr to enter the
function, and then
choose w.
Use the scroll cursor !$ to
move the tangent, or enter a
x-value for a specific coordinate.
Hint: Press l to see the
equation of the tangent.