Square, Square Root, Reciprocal - Singer Friden 1155 Operator's Primer

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4 SQUARE, SQUARE ROOT, RECIPROCAL
The0key is used in the following manner,
CHANGE
SIGN
7.00000
49.00000
-5.00000
25.00000
NOTE: To enter a negative number, first enter the digits of the number, then
press the CHANGE SIGN key. The CHANGE SIGN key instructs the
1155 to change the sign of the number in L from - to + or from + to -.
The!~1
X
I!ke y instructs the
1155
to compute the square root of the absolute
value of the number and is used in the following manner.
16.00000
4.00000
2.00000
1.41421
-4.00000
2.00000
4-1