TI92 Tutorial
Tutorial 
Calculus Topics: derivative() integration max and min
There are a number of built in calculus functions accessible with
the TI92 calculator. Most are listed under the MATH window.
Before we start, please put the calculator in AUTO mode.
d()
The derivative function can be entered by pressing the 2nd
key then 8. To take the first derivative of the function
f(x) = x^{3} . Enter
To take a different order derivative, enter the order next to
the variable. The second derivative of the function above is
show below.
Use the with  symbol to evaluate the derivative for a
specific variable.
The TI92 will take partial derivatives if you specify the variable.
ò()
To integrate and evaluate the function f(x) = x^{3} enter
the following.
Note the limits of integration. If the calculators can find a closed form solution it will
evaluate the integral. If it cannot, it will display the integral
expression.
The calculator will perform a numerical integration approach to
evaluate an integral even though no closed form solution exists.
Double or triple integrals can also be evaluated.
nInt()
The nInt() function numerically integrates an expression.
avgRC()
The avgRC() function returns the forward difference quotient (average
rate of change) of an expression.
nDeriv()
The nDeriv() function returns the numerical derivative as an expression.
It uses the central difference quotient formula.
fmax() and fmin()
These two functions return a Boolean expression specifying candidate
values that maximize or minimize an expression..
