Sharp EL-9900 Operation Manual page 31

c
t
t
l
0
I
@
X
Common Math Function
keys for both keyboards:
y
x
d
b
a
_
Chapter 2: Operating the Graphing Calculator
Enters an arc cosine function at the cursor
Enters a tangent function at the cursor
Enters an arctangent function at the cursor
Enters a logarithm function at the cursor
x
Enters "10 to the
Enters a natural logarithm function at the cursor
e
Enters " -constant to the power of
x
" "
Enters a variable "
determined according to the calculator's coordinate setup: "
rectangular, " θ " for polar, "T" for parametric, "
2
Enters " " at the cursor, to raise a number to the second power
-
1
Enters " " at the cursor, to raise a number to the negative first
power
Enters a mixed number.
Enters a fraction.
Enters an exponent.
By itself enters a "root" figure; the cursor will be set at "a", the
depth.
th power", then sets the cursor at the "
x
", then sets the cursor at the
", " θ ", "T", or "
x n
". The variable is automatically
x
"
x
" for
n
" for sequential.
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