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Fixed Point.md

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44 - Fixed Point

Fixed point numbers using keywords fixed/ufixed are not fully supported by Solidity yet.

They can be declared, but cannot be assigned to or from.

There are fixed-point libraries that are widely used for this such as DSMath, PRBMath, ABDKMath64x64 etc.

Fixed-point numbers, declared with (u)fixedMxN so where M is the size in bits (increments of 8 up to 256) and N is the number of decimals after the point (up to 18); e.g., ufixed32x2.

Slide Screenshot

044.jpg

Slide Deck

  • Fixed vs. Floating
  • Keyword: fixed & ufixed
  • Solidity: No Real Support
  • Libraries: DSMath, PRBMath, ABDKMath64x64 etc.

References