Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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#1 2009-02-11 09:53:10
- JaneFairfax
- Legendary Member
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My own notation for the non-negative reals, rationals and integers
#2 2009-02-11 11:19:56
- George,Y
- Super Member
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Re: My own notation for the non-negative reals, rationals and integers
Howabout
Q-(Q-)
Last edited by George,Y (2009-02-11 11:20:38)
X'(y-Xβ)=0