Sharp EL-9900 operation manual Factor menu, press Eto activate the setup tool, Power, Exp

Chapter 4: Basic Graphing Features — Basic Keyboard

B FACTOR

Use this menu to set the vertical and horizontal zooming factor. The factor set under this menu directly affects the zoom rate of the 3 In and 4 Out sub-menu tools under the ZOOM menu, as described above.

To set the zooming factor, do the following:

1.Within the

B FACTOR menu, press Eto activate the setup tool.

2.When the “Zoom factor” window appears, the cursor is automatically placed at “X_Fact=”. The default zoom factor is 4; enter the required value here.

3.Pressing Eafter entering a value will switch the cursor position to “Y_Fact=”. Enter the required zooming factor, and press E.

4.To go back to the ZOOM menu, press the Z key.

C POWER

1 x2	Use this zooming tool when the equation contains a
	form of “x2”.
2 x–1	Use this zooming tool when the equation contains a
	form of “x-1”.

3x Use this tool to zoom correctly when the equation

contains a form of “ x ”.

D EXP

1 10X Use this tool when the equation contains a form of “10x”.

2 log X Use this tool when the equation contains a form of “log x”.

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