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**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,588

This is just a neat little idea if perhaps anyone wants to round numbers, oh,

just a little differently.

Let h mean **h**alf or a sort-of 5 in the digit where an h is. Let z mean **z**ero.

Here are some example numbers.

6250 < 6h00 < 6750 (The h here means 500 plus or minus 250, exclusive)

6750 <= 7z00 <= 7250 (The z here means plus or minus 250, inclusive)

1.5025 < 1.50h < 1.5075 (The h here means 0.005 but with plus or minus 0.0025)

*Last edited by John E. Franklin (2006-03-28 04:58:37)*

**igloo** **myrtilles** **fourmis**

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**George,Y****Member**- Registered: 2006-03-12
- Posts: 1,306

you may compare its competence with common rounding and the half's exponents system 1/2 1/4 1/8 ...

**X'(y-Xβ)=0**

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