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doc: add play ground demo for v2.3.4

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dudaodong
2024-12-04 14:25:51 +08:00
parent 4ffff0e3f3
commit ecafed511c
33 changed files with 167 additions and 173 deletions
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8
mathutil/mathutil.go
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@@ -400,7 +400,7 @@ func Div[T constraints.Float | constraints.Integer](x T, y T) float64 {
}
// Variance returns the variance of numbers.
// Play: todo
// Play: https://go.dev/play/p/uHuV4YgXf8F
func Variance[T constraints.Float | constraints.Integer](numbers []T) float64 {
n := len(numbers)
if n == 0 {
@@ -418,13 +418,13 @@ func Variance[T constraints.Float | constraints.Integer](numbers []T) float64 {
}
// StdDev returns the standard deviation of numbers.
// Play: todo
// Play: https://go.dev/play/p/FkNZDXvHD2l
func StdDev[T constraints.Float | constraints.Integer](numbers []T) float64 {
return math.Sqrt(Variance(numbers))
}
// Permutation calculate P(n, k).
// Play: todo
// Play: https://go.dev/play/p/MgobwH_FOxj
func Permutation(n, k uint) uint {
if n < k {
return 0
@@ -437,7 +437,7 @@ func Permutation(n, k uint) uint {
}
// Combination calculate C(n, k).
// Play: todo
// Play: https://go.dev/play/p/ENFQRDQUFi9
func Combination(n, k uint) uint {
if n < k {
return 0