Wallis integral: sine power on [0,π/2] (Wallis: ∫_0^{π/2} sin^n x = product formula (odd/even n).)
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Wallis: ∫_0^{π/2} sin^n x = product formula (odd/even n).
What each symbol means
| Symbol | What it stands for |
|---|---|
| n | Non-negative integer |
When to use this
W_n = ((n-1)/n) W_{n-2} with base W_0=π/2, W_1=1.