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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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KEYWORD
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SQRT.KEY
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1993-11-07
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309b
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* sqrt internal
sqrt(x) is the square root function of x. It is the same as x^0.5.
It only gives the principal value (P.V.) (sign(sqrt(x)) >= 0).
root(x,2) gives all branch of square root.
See also: root, ^.
e.g. sqrt(4) gives 2, num(sqrt(2*i)) gives 1+i.