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Section 7: Mathematics and Number-Alteration Functions 85
File name: hp 12c_user's guide_English_HDPMBF12E44 Page: 85 of 209
Printered Date: 2005/7/29 Dimension: 14.8 cm x 21 cm
The Power Function
Pressing
q
calculates a power of a number — that is, y
x
. Like the arithmetic
function
+
,
q
requires two numbers:
1. Key in the base number (which is designated by the y on the key).
2. Press \ to separate the second number (the exponent) from the first (the
base).
3. Key in the exponent (which is designated by the x on the key).
4. Press q to calculate the power.
To Calculate Keystrokes Display
2
1.4
2\1.4q
2.64
2
–1.4
2\1.4Þq
0.38
(–2)
3
2Þ\3q
–8.00
3
2
or 2
1/3
2\3yq
1.26