Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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one use is in optimization problems. if you want to find the minimum cost of constructing, oh i don't don't, say a can, you would probably use partial derivaties.
So what uses do they have?
partial derivative is basically holding one variable constant and differentiating with respect to another variable. for example: z = 3x + 4y
and how do you find one?