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Added hyperbolic trig functions
Signed-off-by: Levi Harrison <git@leviharrison.dev>
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Levi Harrison
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a8ad569db8
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@ -443,8 +443,11 @@ The trigonometric functions work in radians:
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- `asin(v instant-vector)`: calculates the arcsine of all elements in `v` ([special cases](https://pkg.go.dev/math#Asin)).
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- `atan(v instant-vector)`: calculates the arctangent of all elements in `v` ([special cases](https://pkg.go.dev/math#Atan)).
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- `cos(v instant-vector)`: calculates the cosine of all elements in `v` ([special cases](https://pkg.go.dev/math#Cos)).
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- `cosh(v instant-vector)`: calculates the hyperbolic cosine of all elements in `v` ([special cases](https://pkg.go.dev/math#Cosh)).
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- `sin(v instant-vector)`: calculates the sine of all elements in `v` ([special cases](https://pkg.go.dev/math#Sin)).
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- `sinh(v instant-vector)`: calculates the hyperbolic sine of all elements in `v` ([special cases](https://pkg.go.dev/math#Sinh)).
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- `tan(v instant-vector)`: calculates the tangent of all elements in `v` ([special cases](https://pkg.go.dev/math#Tan)).
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- `tanh(v instant-vector)`: calculates the hyperbolic tangent of all elements in `v` ([special cases](https://pkg.go.dev/math#Tanh)).
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The following are useful for converting between degrees and radians:
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@ -600,6 +600,21 @@ func funcAtan(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper)
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return simpleFunc(vals, enh, math.Atan)
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}
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// == sinh(Vector parser.ValueTypeVector) Vector ===
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func funcSinh(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper) Vector {
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return simpleFunc(vals, enh, math.Sinh)
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}
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// == cosh(Vector parser.ValueTypeVector) Vector ===
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func funcCosh(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper) Vector {
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return simpleFunc(vals, enh, math.Cosh)
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}
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// == tanh(Vector parser.ValueTypeVector) Vector ===
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func funcTanh(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper) Vector {
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return simpleFunc(vals, enh, math.Tanh)
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}
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// === rad(Vector parser.ValueTypeVector) Vector ===
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func funcRad(vals []parser.Value, args parser.Expressions, enh *EvalNodeHelper) Vector {
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return simpleFunc(vals, enh, func(v float64) float64 {
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@ -996,6 +1011,7 @@ var FunctionCalls = map[string]FunctionCall{
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"clamp_max": funcClampMax,
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"clamp_min": funcClampMin,
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"cos": funcCos,
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"cosh": funcCosh,
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"count_over_time": funcCountOverTime,
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"days_in_month": funcDaysInMonth,
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"day_of_month": funcDayOfMonth,
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@ -1032,6 +1048,7 @@ var FunctionCalls = map[string]FunctionCall{
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"scalar": funcScalar,
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"sgn": funcSgn,
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"sin": funcSin,
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"sinh": funcSinh,
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"sort": funcSort,
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"sort_desc": funcSortDesc,
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"sqrt": funcSqrt,
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@ -1039,6 +1056,7 @@ var FunctionCalls = map[string]FunctionCall{
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"stdvar_over_time": funcStdvarOverTime,
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"sum_over_time": funcSumOverTime,
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"tan": funcTan,
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"tanh": funcTanh,
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"time": funcTime,
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"timestamp": funcTimestamp,
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"vector": funcVector,
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@ -89,6 +89,11 @@ var Functions = map[string]*Function{
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"cosh": {
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Name: "cosh",
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"count_over_time": {
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Name: "count_over_time",
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ArgTypes: []ValueType{ValueTypeMatrix},
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@ -277,6 +282,11 @@ var Functions = map[string]*Function{
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"sinh": {
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Name: "sinh",
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"sort": {
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Name: "sort",
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ArgTypes: []ValueType{ValueTypeVector},
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@ -312,6 +322,11 @@ var Functions = map[string]*Function{
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"tanh": {
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Name: "tanh",
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ArgTypes: []ValueType{ValueTypeVector},
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ReturnType: ValueTypeVector,
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},
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"time": {
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Name: "time",
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ArgTypes: []ValueType{},
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19
promql/testdata/trig_functions.test
vendored
19
promql/testdata/trig_functions.test
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@ -1,4 +1,4 @@
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# Testing sin() cos() tan() asin() acos() atan() rad() deg() pi().
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# Testing sin() cos() tan() asin() acos() atan() sinh() cosh() tanh() rad() deg() pi().
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load 5m
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trig{l="x"} 10
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@ -35,6 +35,21 @@ eval instant at 5m atan(trig)
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{l="y"} 1.5208379310729538
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{l="NaN"} NaN
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eval instant at 5m sinh(trig)
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{l="x"} 11013.232920103324
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{l="y"} 2.4258259770489514e+08
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{l="NaN"} NaN
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eval instant at 5m cosh(trig)
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{l="x"} 11013.232920103324
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{l="y"} 2.4258259770489514e+08
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{l="NaN"} NaN
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eval instant at 5m tanh(trig)
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{l="x"} 0.9999999958776927
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{l="y"} 1
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{l="NaN"} NaN
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eval instant at 5m rad(trig)
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{l="x"} 0.17453292519943295
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{l="y"} 0.3490658503988659
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@ -68,4 +83,4 @@ eval instant at 5m deg(trig - 20)
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clear
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eval instant at 0s pi()
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{} 3.141592653589793
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3.141592653589793
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