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GNU Emacs Calc 2.02 Manual

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3.7.5 Algebraic Entry Tutorial Exercise 1

Type ' sqrt($) RET.

If the Q key is broken, you could use ' $^0.5 RET. Or, RPN style, 0.5 ^.

(Actually, `$^1:2', using the fraction one-half as the power, is a closer equivalent, since `9^0.5' yields 3.0 whereas `sqrt(9)' and `9^1:2' yield the exact integer 3.)


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