Release calc version 2.10.2t30

help/isqrt

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+NAME
+    isqrt - integer part of square root
+
+SYNOPSIS
+    isqrt(x)
+
+TYPES
+    x		nonnegative real
+
+    return	nonnegative real
+
+DESCRIPTION
+    Return the greatest integer n for which n^2 <= x.
+
+EXAMPLE
+    > print isqrt(8.5), isqrt(200), isqrt(2e6), isqrt(2e56)
+    2 14 1414 14142135623730950488016887242
+
+LIMITS
+    x > 0
+
+LIBRARY
+    NUMBER *qisqrt(NUMBER *x)
+
+SEE ALSO
+    sqrt, iroot