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math: fix typos in Bessel function docs

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While we're at it, also document Yn(0, 0) = -Inf for completeness.

Fixes #18823.

Change-Id: Ib6db68f76d29cc2373c12ebdf3fab129cac8c167
Reviewed-on: https://go-review.googlesource.com/35970
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Shenghou Ma 2017-01-28 02:01:50 -05:00 committed by Robert Griesemer
parent 661e2179e5
commit 211102c85f
1 changed files with 3 additions and 3 deletions
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6
src/math/jn.go
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@ -226,10 +226,10 @@ func Jn(n int, x float64) float64 {
// //
// Special cases are: // Special cases are:
// Yn(n, +Inf) = 0 // Yn(n, +Inf) = 0
// Yn(n > 0, 0) = -Inf // Yn(n ≥ 0, 0) = -Inf
// Yn(n < 0, 0) = +Inf if n is odd, -Inf if n is even // Yn(n < 0, 0) = +Inf if n is odd, -Inf if n is even
// Y1(n, x < 0) = NaN // Yn(n, x < 0) = NaN
// Y1(n, NaN) = NaN // Yn(n, NaN) = NaN
func Yn(n int, x float64) float64 { func Yn(n int, x float64) float64 {
const Two302 = 1 << 302 // 2**302 0x52D0000000000000 const Two302 = 1 << 302 // 2**302 0x52D0000000000000
// special cases // special cases