Differential Calculations - Casio fx-991ZA PLUS II User Manual

(1) Positive Part
(2) Negative Part
When integration values fluctuate widely due to minute shifts in the
integration interval
Divide the integration interval into multiple parts (in a way that breaks
areas of wide fluctuation into small parts), perform integration on each
part, and then combine the results.

Differential Calculations

Function for approximation of the derivative based on the central
difference method.
Natural Display input syntax is
d
syntax is (f (x); a; tol).
dx
tol specifies tolerance, which becomes 1 × 10
tol.
Example 1: To obtain the derivative at point x = π/2 for the function y =
sin(x) (Angle unit: Rad)
(MthIO-MathO)
( )
(LineIO)
( )
d
2
Example 2: (3x - 5x + 2; 2; 1 × 10
dx
d
(f (x)) | , while Linear Display input
x=a
dx
-10
(X)
(π) 2
(X) (;)
(π) 2
-12
) = 7 (LineIO)
35
when nothing is input for
0
0