This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig library itself.
scalbn
Returns a * FLT_RADIX ^ exp.
Zig only supports binary base IEEE-754 floats. Hence FLT_RADIX=2, and this is an alias for ldexp.