HP HP12C hp 12c_user's guide_English_E_HDPMBF12E44.pdf - Page 85
The Power Function
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Section 7: Mathematics and Number-Alteration Functions 85 The Power Function Pressing q calculates a power of a number - that is, yx. 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 21.4 2-1.4 (-2)3 2\1.4q 2\1.4Þq 2Þ\3q 2.64 0.38 -8.00 3 2 or 21/3 2\3yq 1.26 File name: hp 12c_user's guide_English_HDPMBF12E44 Printered Date: 2005/7/29 Page: 85 of 209 Dimension: 14.8 cm x 21 cm
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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
\
1.4
q
2.64
2
–1.4
2
\
1.4
Þq
0.38
(–2)
3
2
Þ\
3
q
–8.00
3
2
or 2
1/3
2
\
3
yq
1.26