IEEE 754

Float32/64 hexadecimal with exponent and mantissa.

Float64

Hex (big-endian) 0x3fb999999999999a

sign 0 · exp 1019 (bias 1023) · frac 999999999999a

Float32

Hex (big-endian) 0x3dcccccd

sign 0 · exp 123 (bias 127) · frac 5033165