Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 84

• Changed the value of a variable in a selected function
• Changed a window variable or graph format setting
• Cleared drawings by selecting
• Changed a stat plot definition
Overlaying Functions on a Graph
On the TI-84 Plus, you can graph one or more new functions without replotting existing functions.
For example, store
sin(X)
press s again. The function Y2 is graphed on top of Y1, the original function.
Graphing a Family of Curves
If you enter a list (Chapter 11) as an element in an expression, the TI-84 Plus plots the function for
each value in the list, thereby graphing a family of curves. In Simul graphing-order mode, it graphs
all functions sequentially for the first element in each list, and then for the second, and so on.
graphs three functions:
{2,4,6}sin(X)
graphs
{2,4,6}sin({1,2,3}X)
When using more than one list, the lists must have the same dimensions.
Note:
ClrDraw
to Y1 in the Y= editor and press s. Then store
,
2 sin(X) 4 sin(X)
, , and
2 sin(X) 4 sin(2X)
, and .
6 sin(X)
.
6 sin(3X)
Chapter 3: Function Graphing
to Y2 and
cos(X)
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