}
	}
	for _, pt := range branchPoints {
		if f0, f1 := Acos(pt[0]), Acos(pt[1]); !cVeryclose(f0, f1) {
			t.Errorf("Acos(%g) not continuous, got %g want %g", pt[0], f0, f1)
		}
	}
}
func TestAcosh(t *testing.T) {
	for i := 0; i < len(vc); i++ {
		if f := Acosh(vc[i]); !cSoclose(acosh[i], f, 1e-14) {
			t.Errorf("Acosh(%g) = %g, want %g", vc[i], f, acosh[i])
		}
	}
	for _, v := range acoshSC {

		}
	}
	for i := 0; i < len(vfacosSC); i++ {
		if f := Acos(vfacosSC[i]); !alike(acosSC[i], f) {
			t.Errorf("Acos(%g) = %g, want %g", vfacosSC[i], f, acosSC[i])
		}
	}
}

func TestAcosh(t *testing.T) {
	for i := 0; i < len(vf); i++ {
		a := 1 + Abs(vf[i])
		if f := Acosh(a); !veryclose(acosh[i], f) {
			t.Errorf("Acosh(%g) = %g, want %g", a, f, acosh[i])
		}
	}