text: /**
  * @license Apache-2.0
  *
  * Copyright (c) 2018 The Stdlib Authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *    http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
  
  'use strict';
  
  // MODULES //
  
  var tape = require( 'tape' );
  var isnan = require( '@stdlib/math/base/assert/is-nan' );
  var isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
  var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
  var EPS = require( '@stdlib/constants/math/float64-eps' );
  var PINF = require( '@stdlib/constants/math/float64-pinf' );
  var NINF = require( '@stdlib/constants/math/float64-ninf' );
  var abs = require( '@stdlib/math/base/special/abs' );
  var asinh = require( './../lib' );
  
  
  // FIXTURES //
  
  var largerNegative = require( './fixtures/julia/larger_negative.json' );
  var largerPositive = require( './fixtures/julia/larger_positive.json' );
  var largeNegative = require( './fixtures/julia/large_negative.json' );
  var largePositive = require( './fixtures/julia/large_positive.json' );
  var mediumNegative = require( './fixtures/julia/medium_negative.json' );
  var mediumPositive = require( './fixtures/julia/medium_positive.json' );
  var smallNegative = require( './fixtures/julia/small_negative.json' );
  var smallPositive = require( './fixtures/julia/small_positive.json' );
  var smaller = require( './fixtures/julia/smaller.json' );
  var tinyNegative = require( './fixtures/julia/tiny_negative.json' );
  var tinyPositive = require( './fixtures/julia/tiny_positive.json' );
  var hugeNegative = require( './fixtures/julia/huge_negative.json' );
  var hugePositive = require( './fixtures/julia/huge_positive.json' );
  
  
  // TESTS //
  
  tape( 'main export is a function', function test( t ) {
  	t.ok( true, __filename );
  	t.strictEqual( typeof asinh, 'function', 'main export is a function' );
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-1e-308,-1e-300]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = tinyNegative.x;
  	expected = tinyNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[1e-300,1e-308]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = tinyPositive.x;
  	expected = tinyPositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-0.8,0.8]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = smaller.x;
  	expected = smaller.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-1.0,-0.8]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = smallNegative.x;
  	expected = smallNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[0.8,1.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = smallPositive.x;
  	expected = smallPositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-3.0,-1.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = mediumNegative.x;
  	expected = mediumNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[1.0,3.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = mediumPositive.x;
  	expected = mediumPositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[3.0,28.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = largePositive.x;
  	expected = largePositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-28.0,-3.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = largeNegative.x;
  	expected = largeNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[28.0,100.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = largerPositive.x;
  	expected = largerPositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-100.0,-28.0]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = largerNegative.x;
  	expected = largerNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[-1e200,-1e208]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = hugeNegative.x;
  	expected = hugeNegative.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function computes the hyperbolic arcsine on the interval `[1e300,1e308]`', function test( t ) {
  	var expected;
  	var delta;
  	var tol;
  	var x;
  	var y;
  	var i;
  
  	x = hugePositive.x;
  	expected = hugePositive.expected;
  
  	for ( i = 0; i < x.length; i++ ) {
  		y = asinh( x[i] );
  		if ( y === expected[ i ] ) {
  			t.equal( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
  		} else {
  			delta = abs( y - expected[i] );
  			tol = 1.0 * EPS * abs( expected[i] );
  			t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
  		}
  	}
  	t.end();
  });
  
  tape( 'the function returns `NaN` if provided `NaN`', function test( t ) {
  	var v = asinh( NaN );
  	t.equal( isnan( v ), true, 'returns NaN' );
  	t.end();
  });
  
  tape( 'the function returns `+infinity` if provided `+infinity`', function test( t ) {
  	var v = asinh( PINF );
  	t.equal( v, PINF, 'returns +infinity' );
  	t.end();
  });
  
  tape( 'the function returns `-infinity` if provided `-infinity`', function test( t ) {
  	var v = asinh( NINF );
  	t.equal( v, NINF, 'returns -infinity' );
  	t.end();
  });
  
  tape( 'the function returns `-0` if provided `-0`', function test( t ) {
  	var v = asinh( -0 );
  	t.equal( isNegativeZero( v ), true, 'returns -0' );
  	t.end();
  });
  
  tape( 'the function returns `+0` if provided `+0`', function test( t ) {
  	var v = asinh( +0 );
  	t.equal( isPositiveZero( v ), true, 'returns +0' );
  	t.end();
  });
  