Texas Instruments TI-89 Manuale Utente
![Texas Instruments](https://files.manualsbrain.com/attachments/b46f99d826b2b0e0e5f558c5fb6483942eb9216b/common/fit/150/50/c15ea36eb1fb1cce99a3b94668675bfc78ce832d8d727d9a7bb51a125510/brand_logo.gif)
Basic Function Graphing
331
Overview of the Math Menu
Overview of the Math Menu
Overview of the Math Menu
Overview of the Math Menu
Press
‡ from the Graph screen.
On the Derivatives submenu, only
dy/dx is available for function
graphing. The other derivatives
are available for other graphing
modes (parametric, polar, etc.).
dy/dx is available for function
graphing. The other derivatives
are available for other graphing
modes (parametric, polar, etc.).
Math Tool
Description
Value
Evaluates a selected y(x) function at a specified x value.
Zero,
Minimum,
Maximum
Minimum,
Maximum
Finds a zero (x-intercept), minimum, or maximum point
within an interval.
within an interval.
Intersection
Finds the intersection of two functions.
Derivatives
Finds the derivative (slope) at a point.
‰
f(x)dx
Finds the approximate numerical integral over an interval.
Inflection
Finds the inflection point of a curve, where its second
derivative changes sign (where the curve changes
concavity).
derivative changes sign (where the curve changes
concavity).
Distance
Draws and measures a line between two points on the
same function or on two different functions.
same function or on two different functions.
Tangent
Draws a tangent line at a point and displays its equation.
Arc
Finds the arc length between two points along a curve.