Sharp EL-9900 - Manual (Page 80)

70
Chapter 5: Advanced Calculations — Advanced Keyboard
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.
3. Calculations Using MATH Menu
The Advanced keyboard has considerably more MATH menu items to choose from
than that of the Basic keyboard:
A CALC 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.
01 log
2
log
2
value
Enters a base-2
logarithm (log
2
).