precision ( -- n )

published: 9 January 2022 / updated 12 January 2022

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vocabulary: forth

Pseudo constant determining the display precision of real numbers.

Initial value 6.

If we reduce the display precision of real numbers below 6, the calculations will be when even performed with precision to 6 decimal places.

Example:

precision . \ display 6 
pi f.       \ display 3.141592 
4 set-precision 
precision . \ display 4 
pi f.       \ display 3.1415

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