The Horizontal Command

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Command Summary

Draws a horizontal line on the graph screen.

Command Syntax

Horizontal Y

Menu Location

In the program editor:

1. 2nd DRAW to enter the draw menu
2. 3 to insert the Horizontal command, or use arrows and ENTER.

Calculator Compatibility

TI-83/84/+/SE

Token Size

1 byte

Horizontal Y draws a vertical line from the left of the graph screen to the right at Y. Horizontal is usually only used to replace a line that stretches the entire length of the graph screen, along with its counterpart Vertical.

Horizontal is affected by the window settings, unlike the Pxl- commands.

:Horizontal 5

Advanced Uses

One of the fastest ways to make the entire screen black is by drawing horizontal lines from the bottom of the screen to the top.

:For(A,Ymin,Ymax,ΔY
:Horizontal A
:End

If working with TI 84+C version calculators, the Horizontal command takes an additional color argument, as shown below:

Horizontal 5,GRAY

Related Commands

• Line(
• Vertical

.