Floating Point Formatting

Russ Cox
January 10, 2026
research.swtch.com/fp-all

Posted on Saturday, January 10, 2026.

These are the posts in the “Floating Point Formatting” series, which started in 2011 and continued in 2026.

• “Floating Point to Decimal Conversion is Easy” (2011)
• “Pulling a New Proof from Knuth’s Fixed-Point Printer” (2026)
• “Floating-Point Printing and Parsing Can Be Simple And Fast” (2026)
• “Fast Unrounded Scaling: Proof by Ivy” (2026)