Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Topic review (newest first)
- Nehushtan
- 2013-04-14 04:27:28
This is only true if the basis is orthonormal (not just orthogonal), i.e. and .
Similarly .
Similarly .
- mrpace
- 2012-09-13 09:59:50
Show that if {v1 , v2} is an orthogonal basis of a vector space V, and x=c1v1 + c2v2 for any real V, then ci = <x, vi>
this seems super hard to me.