Sharp EL-5100 Instruction Manual page 20

k. Combinations:
Calculate the number of combinations of
n C r = ------ —------
5 cards in a deck of 52. r'
Key in: 52 [ncE 5 UK\
Answer: 2598960
l
. Scientific Notation
If you wish to place a number into the calculator in scientific notation you must use the "Exp " key. If
you wish to convert from floating decimal to scientific notation, you must use the key
I
f
~
e
1 .
Calculate 1.2 x 1020 x 1.5 x 10s
Key in: 1.2
1*3
20
E
1.5
1*3
5
C= D
Answer: 1.8E25 (1.8 x 1025)
Calculate 1.992 x 1033 x 6.668 x 10"23
Key in: 1.992
[1*3
33
E
6.668
Iwl fF)1
23
E l
Answer: 1.3282656E11 (1.3282656 x 1011)