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Example code of danack/float-hex

Informations about the package float-hex

FloatHex

Functions for converting float to a hex-string and back again, and also for showing two floating point numbers as a binary representation.

Build Status

Example

Why?

Some of the tests in Imagick compare floats, and trying to figure out if the float is off by a rounding error, or by a larger amount was annoying.

Comparing the bits makes it easier to see what is going on visually. e.g. for comparing 0.3 with 0.1 + 0.2:

The output is:

Straight away, you can see that the difference between the numbers is in the lowest bit.

hexfloat and floathex32 might be useful for people who need to transfer floats precisely over text channels.

Exact float value

If you want to see the exact value that a float is stored as, this can be done with number_format.

TODO

All versions of float-hex with dependencies

PHP Build Version
Package Version
Requires php Version >= 7.4
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