Texas Instruments TI-84 Plus Guide Book

Chapter 8: Draw Instructions 193
Note: Change the fixed decimal setting on the mode screen if you want to see fewer
digits displayed for X and the equation for Y.
Drawing a Tangent Line from the Home Screen or a Program
Drawing a Tangent Line from the Home Screen or a ProgramDrawing a Tangent Line from the Home Screen or a Program
Drawing a Tangent Line from the Home Screen or a Program
Tangent( (tangent line) draws a line tangent to expression in terms of X, such as Y1 or X
2
,
at point
X=value. X can be an expression. expression is interpreted as being in Func mode.
Tangent(expression,value)

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-