Name

log2 — return the base 2 logarithm of the parameter

Declaration

genType log2(genType x);

Parameters

x

Specify the value of which to take the base 2 logarithm.

Description

log2 returns the base 2 logarithm of x. i.e., the value y which satisfies x2y. Results are undefined if x0.

Version Support

FunctionVersion 1.10Version 1.20Version 1.30Version 1.40Version 1.50Version 3.30Version 4.00Version 4.10Version 4.20Version 4.30
log2YYYYYYYYYY

See Also

exp, log, exp2

Copyright

Copyright © 2011 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.