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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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ARG.KEY
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1993-11-07
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335b
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7 lines
* arg external
arg(x) gives the argument (phase angle) of x in radians. It only gives the
principle value (P.V.): -pi < arg(x) <= pi. arg(x) = atan2(re(x),im(x)).
x can be complex number. For positive real x, arg(x)=0.
See also: abs, arg, sign, atan2.
e.g. num(arg(i)) gives 1.5..