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When you enter a numeric value or numeric expression and press [
the result is stored in the Answer function, which you can then quickly recall.
See Example 19.
Note: The result is retained even if the power is turned off. It is also retained
if a subsequent calculation results in an error.
Chapter 4 : Common Math Calculations
Logarithm and Antilogarithm
You can calculate common and natural logarithms and antilogarithms using
[ log ], [ ln ], [ 2nd ] [ 10
Fraction Calculation
Fractions are displayed as follows:
5 ┘ 12
=
56 U 5 ┘ 12
To enter a mixed number, enter the integer part, press [ A b/c ], enter
•
the numerator, press [ A b/c ], and enter the denominator. To enter an
improper fraction, enter the numerator, press [ A b/c ], and enter the
denominator. See Example 21.
During a calculation involving fractions, a fraction is reduced to its
•
lowest terms where possible. This occurs when you press [ + ], [ – ],
[ × ], [
] ) or [
mixed number to an improper fraction and vice versa. See Example
22.
To convert a decimal to a fraction or vice versa, press [ 2nd ]
•
[ F
D ] and [
Calculations containing both fractions and decimals are calculated in
•
decimal format. See Example 24.
Converting Angular Units
You can specify an angular unit of degrees (DEG), radians (RAD), or grads
(GRAD). You can also convert a value expressed in one angular unit to its
corresponding value in another angular unit.
The relation between the anglular units is :
x
], and [ 2nd ] [ e
=
]. Pressing [ 2nd ] [ A b/c
]. See Example 23.
180° = π radians = 200 grads
E-15
x
]. See Example 20.
d/e ] converts a
],
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