Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 2011-08-29 16:06:21

Dragonshade
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Registered: 2008-01-16
Posts: 147

gradient and normal

problem solved. Delete this thread please

Last edited by Dragonshade (2011-08-29 17:11:44)

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