Numerical Derivative l MATH l (8:) nDeriv( MATH. Numerical Derivative l MATH l (8:) nDeriv( l nDeriv(f(x),x,a) gives f ’ (a) l Try f(x)=x^3 at x=2, compare.

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Numerical Derivative l MATH l (8:) nDeriv( MATH

Numerical Derivative l MATH l (8:) nDeriv( l nDeriv(f(x),x,a) gives f ’ (a) l Try f(x)=x^3 at x=2, compare to the computation using the power rule. MATH

Numerical Derivative MATH

Numerical Derivative Calculator uses the “symmetric difference quotient” to find the NUMERICAL DERIVATIVE

Numerical Derivative

Warning: The calculator may return an incorrect value if you evaluate a derivative at a point where the function is not differentiable. Examples: nDeriv(1/x, x,0) returns when the result should be infinity or DNE Another Example: nDeriv(abs(x),x,0) returns 0 when the derivative does not exist because there is a corner point at x = 0

function window graph You can also use nDeriv to graph the derivative function y = f ' (x)

On calculator use nDeriv as follows: Graph

You should see this on your grapher:

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