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38 lines
701 B
Plaintext
38 lines
701 B
Plaintext
NAME
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issq - whether a value is a square
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SYNOPSIS
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issq(x)
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TYPES
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x real
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return int
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DESCRIPTION
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Determine if x is a square. If there exists integers a, b such that:
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x == a^2 / b^2 (b != 0)
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return 1, otherwise return 0.
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EXAMPLE
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> print issq(25), issq(3), issq(0)
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1 0 1
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> print issq(4/25), issq(-4/25), issq(pi())
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1 0 0
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LIMITS
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none
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LIBRARY
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BOOL qissquare(NUMBER *x)
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BOOL zissquare(ZVALUE x)
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SEE ALSO
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isassoc, isatty, isblk, isconfig, isdefined, iserror, iseven, isfile,
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ishash, isident, isint, islist, ismat, ismult, isnull, isnum, isobj,
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isobjtype, isodd, isprime, isrand, israndom, isreal, isrel,
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issimple, isstr, istype
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