III. Working With A Graph

B. MATH

2. dy/dx

This is a calculus application. dy/dx gives a numerical approximation of the first derivative at the indicated point. You can use trace to get to the x-value or you can enter a value of x.

Example: Find the numerical derivative at x=1 and x=-1.

Enter the function.
Graph with
ZDECM.
dy/dx:
Enter x=-1.
dy/dx at x=-1
dy/dx at x=1

 

 

A. y(x)
B. MATH
C. FORMAT
D. EVAL
E. TABLE
F. TRACE
G. ZOOM