diff options
Diffstat (limited to 'src/pkg/math/sinh.go')
| -rw-r--r-- | src/pkg/math/sinh.go | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/pkg/math/sinh.go b/src/pkg/math/sinh.go index 1e55f0ba5..255ea2851 100644 --- a/src/pkg/math/sinh.go +++ b/src/pkg/math/sinh.go @@ -20,14 +20,13 @@ package math // Sinh returns the hyperbolic sine of x. func Sinh(x float64) float64 { // The coefficients are #2029 from Hart & Cheney. (20.36D) - const - ( + const ( P0 = -0.6307673640497716991184787251e+6; P1 = -0.8991272022039509355398013511e+5; P2 = -0.2894211355989563807284660366e+4; P3 = -0.2630563213397497062819489e+2; Q0 = -0.6307673640497716991212077277e+6; - Q1 = 0.1521517378790019070696485176e+5; + Q1 = 0.1521517378790019070696485176e+5; Q2 = -0.173678953558233699533450911e+3; ) @@ -47,8 +46,8 @@ func Sinh(x float64) float64 { default: sq := x*x; - temp = (((P3*sq+P2)*sq+P1)*sq+P0)*x; - temp = temp/(((sq+Q2)*sq+Q1)*sq+Q0); + temp = (((P3*sq + P2)*sq + P1)*sq + P0)*x; + temp = temp/(((sq+Q2)*sq + Q1)*sq + Q0); } if sign { @@ -60,7 +59,7 @@ func Sinh(x float64) float64 { // Cosh returns the hyperbolic cosine of x. func Cosh(x float64) float64 { if x < 0 { - x = - x; + x = -x; } if x > 21 { return Exp(x)/2; |