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92.
175.
Permutation ( n P r ) and Combination
(
n C r )
These functions make it possible to perform permutation and combination
calculations.
n
and
r
must be integers in the range of 0 ≦
r
≦
n
< 1 × 10
10
.
Example 1: To determine how many different 4-digit values can be
produced using the numbers 1 through 7
• Numbers cannot be duplicated within the same 4-digit value (1234 is
allowed, but 1123 is not).
7 ( n P r ) 4
840.
Example 2: To determine how many different 4-member groups can be
organized in a group of 10 individuals
10 ( n C r ) 4
210.
Rounding function (Rnd)
Using the Rnd function causes decimal fraction values of the argument to
be rounded in accordance with the current number of display digits setting
(Norm, Fix, Sci). With Norm 1 or Norm 2, the argument is rounded off to 10
digits.
Example: To perform the following calculations when Fix 3 is selected for
the number of display digits: 10 ÷ 3 × 3 and Rnd(10 ÷ 3) × 3
･････
(Fix)
10 3 3 10.000
10
3 (Rnd) 3 9.999
Using CALC
CALC lets you input calculation expressions that include one or more
variable, assign values to the variables, and calculate the result. CALC
can be used in the COMP Mode and CMPLX Mode.
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