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

 

 

 

1. ROOT
2. dy/dx
3. Integral
4. FMIN
5. FMAX
6. INFLC
7. YICPT
8. ISECT
9. DIST
10. ARC
11. TANLN

 

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