HP 12C#ABA - 12C Financial Calculator Quick Start Manual page 18

Financial calculator
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Table 1-3 Keys and Functions
Key(s)
!
U
Factorial
k
U
x
e
l
U
LN
RND
T
Round
n
U
Integer function
m
U
Fractional
function
14
Getting Started
Description and Page Number in the User's Guide
Calculates factorial of number displayed in the X-
register (page 83).
Natural antilogarithm. Raise e to power of the
number displayed in the X-register (page 83).
Calculates natural logarithm (base e) of the number
in the displayed X-register (page 83).
Rounds mantissa of 10-digit number in X-register to
match the display (page 83).
Leaves only the integer portion of the number
displayed in the X-register by truncating fractional
portion. It replaces each digit to the right of the
decimal point by 0. The original number can be
recalled by pressing
Leaves only the fractional portion of the number
displayed in the X-register by truncating the integer
portion. It replaces each digit to the left of the
decimal point by 0. The original number can be
recalled by pressing
r
U
(page 83).
Ur
(page 84).

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