Sharp EL-9900 User Manual

x

Raises a preceding value to the power of 

-

1. If no value is

preceded, then the cursor will be placed at the base.

_

Enters an a

th

 root of a base. When a value precedes, then the

value will be incorporated as the index number. Otherwise, both

entry areas will be left blank.

+

Enters a square root; sets the cursor at the base entry area.

$

Enters 

π (3.14…).

~

Sets the following value as 

θ, assuming the preceding value is the

radius of the polar coordinates.

#

Enters i  (representing  -

1

), to make imaginary or combination

numbers.

The Advanced keyboard has considerably more MATH menu items to choose from

than that of the Basic keyboard:

Contains sub-menu tools for advanced calculations. To access

each sub-menu item, make sure that this A CALC menu item is

selected. Pressing the 

' cursor key will extend the cursor to

the sub-menu items. Items can then be highlighted by scrolling

with 

{, }, ; or ', and selected by pressing

E, or simply use the short cut key stroke (i.e., select 01 by
pressing 

0 and 1).

A sub-menu item with open parenthesis will need to be completed

by the closing parenthesis; failure to do so will result in an error.

Enters a base-2

logarithm (log

2

).