HP HP-18C - Page 47

To key in numbers in scientific notation :
1. Key in the mantissa . If the mantissa is negative, use ~ to
change the sign.
2. Press either the alphabetic [IJ or .[IJ to start the exponent .
3. If the exponent is negative, press 8 .
4. Key in the exponent.
Keys: Display:
4.78 [IJ 13 GJ
8[IJ250 5.98E-13
2.36 ~ .[IJ
8150120 - 2.83E-14
Description:
4.78 X 1013 -7- 8 X 10
25
equals 5. 98 X 10-
13
.
-2.36 X 10-
15
X 12 =
-2.83 x 10-
14
.
2: Ar ithmetic 45