14 G e t t i n g S t a r t e d
U!
Factorial
Calculates factorial of number displayed in the X-
register (page 83).
Uk
e
x
Natural antilogarithm. Raise e to power of the
number displayed in the X-register (page 83).
Ul
LN
Calculates natural logarithm (base e) of the number
in the displayed X-register (page 83).
T RND
Round
Rounds mantissa of 10-digit number in X-register to
match the display (page 83).
Un
Integer function
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
Ur (page 83).
Um
Fractional
function
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
Ur(page 84).
Table 1-3 Keys and Functions
Key(s) Description and Page Number in the User’s Guide
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