33
Chapter 3: Manual Calculations
c
Enters a cosine function to be used in a trigonometric calculation.
Example
• Calculate cosine
π
/3.
c
@
$
b
3
E
t
Enters a tangent function to be used in a trigonometric calcula-
tion.
Example
• Calculate tangent
π
/4.
t
@
$
b
4
E
y
Squares the preceding number.
Example
• Obtain the answer to 12
2
.
12
y
E
Note:
When no base number is entered, the base number area will be
left blank and just the exponent appear.
C
y
;
1 2
'
E
l
Enters a “log” function for a logarithmic calculation
Example
• Calculate log 100.
l
1 0 0
E
I
Enters a natural logarithm function.
Example
• Calculate In
e
4
.
I
@
@
4
E
.
,
Enters a comma “ , ” at the cursor. A comma is required in some
of the MATH functions. For more information, refer to the next
section “Calculations Using MATH Menu Items” in this chapter.
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