sgreben / piecewiselinear Goto Github PK

Would a pull request to modify At() to return (float64, error) be accepted? In my use case I'd prefer not to rely on a magic value of 0 to indicate not found but would propose instead we returned something like 0, fmt.Errorf("value out of range") so the user could decide how to handle those cases?

Hello!
I've tried to run simple example before using in project:

f := piecewiselinear.Function{Y: []float64{100, 105, 120}}
f.X = piecewiselinear.Span(10, 16, len(f.Y))
fmt.Println(f.X)
fmt.Println(f.Y)
fmt.Println(
f.At(10), // f.At(x) evaluates f at x
f.At(11),
f.At(12),
f.At(13),
f.At(14),
f.At(15),
f.At(16),
)

And I've got the output:
[10 13 16]
[100 105 120]
0 101.66666666666667 103.33333333333334 105 110.00000000000001 115 120

Everything is fine except zero on defined X value.

Thank you