Enrico Weigelt <[EMAIL PROTECTED]> writes:
i've noticed an problem with conversion from real to float - this produces ugly values. (in fact it seems to be real->float8)
You do realize that float4/real is only good to six decimal places on most platforms?
You can take the issue up with the glibc boys if you like, but I think you'll get laughed off.
and importantly, are stored as binary fractions. 0.10000 decimal is a repeating fraction in binary, its like .1100110011.... x 2^-2 or something as a FLOAT. Float4 has like 22 bits of significants for the mantissa, while Float8 has like 51 bits or something (this is from rusty memory, so I could have slipped a few bits here).
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