| // Properties of Math.atanh that are guaranteed by the spec. |
| |
| // If x is NaN, the result is NaN. |
| assertEq(Math.atanh(NaN), NaN); |
| |
| // If x is less than −1, the result is NaN. |
| assertEq(Math.atanh(-ONE_PLUS_EPSILON), NaN); |
| assertEq(Math.atanh(-Number.MAX_VALUE), NaN); |
| assertEq(Math.atanh(-Infinity), NaN); |
| |
| for (var i = -5; i < -1; i += 0.1) |
| assertEq(Math.atanh(i), NaN); |
| |
| // If x is greater than 1, the result is NaN. |
| assertEq(Math.atanh(ONE_PLUS_EPSILON), NaN); |
| assertEq(Math.atanh(Number.MAX_VALUE), NaN); |
| assertEq(Math.atanh(Infinity), NaN); |
| |
| for (var i = +5; i > +1; i -= 0.1) |
| assertEq(Math.atanh(i), NaN); |
| |
| // If x is −1, the result is −∞. |
| assertEq(Math.atanh(-1), -Infinity); |
| |
| // If x is +1, the result is +∞. |
| assertEq(Math.atanh(+1), Infinity); |
| |
| // If x is +0, the result is +0. |
| assertEq(Math.atanh(+0), +0); |
| |
| // If x is −0, the result is −0. |
| assertEq(Math.atanh(-0), -0); |
| |
| |
| reportCompare(0, 0, "ok"); |