Skip to content

test: migrate math/base/special/atan to ULP-based testing #15872

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
yb175 wants to merge 2 commits into
base: develop
Choose a base branch
from
+14 −119
Open

test: migrate math/base/special/atan to ULP-based testing #15872

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
91dd0ad
test: migrate math/base/special/atan to ULP-based testing
yb175 Oct 3, 2026
edc4933
Merge branch 'develop' into test/atan-native-ulp-11352
yb175 Oct 5, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
133 changes: 14 additions & 119 deletions lib/node_modules/@stdlib/math/base/special/atan/test/test.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,9 +23,8 @@
var resolve = require( 'path' ).resolve;
var tape = require( 'tape' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var tryRequire = require( '@stdlib/utils/try-require' );
var EPS = require( '@stdlib/constants/float64/eps' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var PI = require( '@stdlib/constants/float64/pi' );
Expand Down Expand Up @@ -68,8 +67,6 @@ tape( 'main export is a function', opts, function test( t ) {

tape( 'the function computes the arctangent on the interval `[-1e-308,-1e-300]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -79,21 +76,13 @@ tape( 'the function computes the arctangent on the interval `[-1e-308,-1e-300]`'

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[1e-300,1e-308]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -103,21 +92,13 @@ tape( 'the function computes the arctangent on the interval `[1e-300,1e-308]`',

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-0.8,0.8]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -127,21 +108,13 @@ tape( 'the function computes the arctangent on the interval `[-0.8,0.8]`', opts,

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-1.0,-0.8]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -151,21 +124,13 @@ tape( 'the function computes the arctangent on the interval `[-1.0,-0.8]`', opts

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[0.8,1.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -175,21 +140,13 @@ tape( 'the function computes the arctangent on the interval `[0.8,1.0]`', opts,

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-3.0,-1.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -199,21 +156,13 @@ tape( 'the function computes the arctangent on the interval `[-3.0,-1.0]`', opts

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[1.0,3.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -223,21 +172,13 @@ tape( 'the function computes the arctangent on the interval `[1.0,3.0]`', opts,

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[3.0,100.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -247,21 +188,13 @@ tape( 'the function computes the arctangent on the interval `[3.0,100.0]`', opts

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-100.0,-3.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -271,21 +204,13 @@ tape( 'the function computes the arctangent on the interval `[-100.0,-3.0]`', op

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[100.0,1000.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -295,21 +220,13 @@ tape( 'the function computes the arctangent on the interval `[100.0,1000.0]`', o

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-1000.0,-100.0]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -319,21 +236,13 @@ tape( 'the function computes the arctangent on the interval `[-1000.0,-100.0]`',

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[-1e200,-1e208]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -343,21 +252,13 @@ tape( 'the function computes the arctangent on the interval `[-1e200,-1e208]`',

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the arctangent on the interval `[1e300,1e308]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -367,13 +268,7 @@ tape( 'the function computes the arctangent on the interval `[1e300,1e308]`', op

for ( i = 0; i < x.length; i++ ) {
y = atan( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( 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.strictEqual( isAlmostSameValue( y, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});
Expand Down
Loading