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[LeanCalc.git] / help / isqrt
1 NAME
2     isqrt - integer part of square root
3
4 SYNOPSIS
5     isqrt(x)
6
7 TYPES
8     x           nonnegative real
9
10     return      nonnegative real
11
12 DESCRIPTION
13     Return the greatest integer n for which n^2 <= x.
14
15 EXAMPLE
16     > print isqrt(8.5), isqrt(200), isqrt(2e6), isqrt(2e56)
17     2 14 1414 14142135623730950488016887242
18
19 LIMITS
20     x > 0
21
22 LINK LIBRARY
23     NUMBER *qisqrt(NUMBER *x)
24
25 SEE ALSO
26     sqrt, iroot
27