remove pow10 in favor of exp10, define scalbn and scalbln by ldexp

itchyny · Mar 3, 2024 · 7bbee36 · 7bbee36
1 parent 0a38bb1
commit 7bbee36
Show file tree

Hide file tree

Showing 2 changed files with 5 additions and 15 deletions.
diff --git a/cli/test.yaml b/cli/test.yaml
@@ -4028,17 +4028,16 @@
   expected: |
     [0,-1,1,-1.5,1,1.25,1,1.5625]
 
-- name: exp, exp10, exp2, expm1, pow10 functions
+- name: exp, exp10, exp2, expm1 functions
   args:
     - -c
-    - 'map(exp), map(exp10), map(exp2), map(expm1), map(pow10) | map(. * 1000000000 | floor / 1000000000)'
+    - 'map(exp), map(exp10), map(exp2), map(expm1) | map(. * 1000000000 | floor / 1000000000)'
   input: '[0, -0.5, 1, -1.5, 2, 10, 100, 300]'
   expected: |
     [1,0.606530659,2.718281828,0.22313016,7.389056098,22026.465794806,2.6881171418161356e+43,1.9424263952412558e+130]
     [1,0.316227766,10,0.031622776,100,10000000000,1.0000000000000002e+100,1.7976931348623157e+308]
     [1,0.707106781,2,0.35355339,4,1024,1.2676506002282294e+30,2.037035976334486e+90]
     [0,-0.393469341,1.718281828,-0.77686984,6.389056098,22025.465794806,2.6881171418161356e+43,1.9424263952412558e+130]
-    [1,0.316227766,10,0.031622776,100,10000000000,1.0000000000000002e+100,1.7976931348623157e+308]
 
 - name: frexp, modf function
   args:

diff --git a/func.go b/func.go
@@ -165,15 +165,14 @@ func init() {
 		"fmod":           mathFunc2("fmod", math.Mod),
 		"hypot":          mathFunc2("hypot", math.Hypot),
 		"jn":             mathFunc2("jn", funcJn),
-		"ldexp":          mathFunc2("ldexp", funcLdexp),
 		"nextafter":      mathFunc2("nextafter", math.Nextafter),
 		"nexttoward":     mathFunc2("nexttoward", math.Nextafter),
 		"remainder":      mathFunc2("remainder", math.Remainder),
-		"scalb":          mathFunc2("scalb", funcScalb),
-		"scalbln":        mathFunc2("scalbln", funcScalbln),
+		"ldexp":          mathFunc2("ldexp", funcLdexp),
+		"scalb":          mathFunc2("scalb", funcLdexp),
+		"scalbln":        mathFunc2("scalbln", funcLdexp),
 		"yn":             mathFunc2("yn", funcYn),
 		"pow":            mathFunc2("pow", math.Pow),
-		"pow10":          mathFunc("pow10", funcExp10),
 		"fma":            mathFunc3("fma", math.FMA),
 		"infinite":       argFunc0(funcInfinite),
 		"isfinite":       argFunc0(funcIsfinite),
@@ -1411,14 +1410,6 @@ func funcLdexp(l, r float64) float64 {
 	return math.Ldexp(l, int(r))
 }
 
-func funcScalb(l, r float64) float64 {
-	return l * math.Pow(2, r)
-}
-
-func funcScalbln(l, r float64) float64 {
-	return l * math.Pow(2, r)
-}
-
 func funcYn(l, r float64) float64 {
 	return math.Yn(int(l), r)
 }