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test: add tests to achieve full coverage in math/base/special/lnf
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‎lib/node_modules/@stdlib/math/base/special/lnf/test/test.js‎

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@@ -242,6 +242,18 @@ tape( 'the function returns `NaN` if provided a negative number', function test(
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t.end();
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});
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tape( 'the function returns `NaN` if provided `-infinity`', function test( t ) {
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var v = lnf( NINF );
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t.strictEqual( isnanf( v ), true, 'returns expected value' );
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t.end();
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});
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tape( 'the function returns `NaN` if provided `NaN`', function test( t ) {
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var v = lnf( NaN );
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t.strictEqual( isnanf( v ), true, 'returns expected value' );
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t.end();
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});
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tape( 'the function returns positive zero if provided `1.0`', function test( t ) {
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var v = lnf( 1.0 );
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t.strictEqual( isPositiveZero( v ), true, 'returns expected value' );

‎lib/node_modules/@stdlib/math/base/special/lnf/test/test.polyval_p.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var abs = require( '@stdlib/math/base/special/abs' );
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var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
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var polyval = require( './../lib/polyval_p.js' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof polyval, 'function', 'main export is a function' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for x = 0', function test( t ) {
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var v = polyval( 0.0 );
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t.strictEqual( v, 0.40000972152, 'returns expected value' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for x = -0', function test( t ) {
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var v = polyval( -0.0 );
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t.strictEqual( v, 0.40000972152, 'returns expected value' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for positive values', function test( t ) {
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var expected;
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var delta;
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var tol;
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var v;
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var x;
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x = 1.0;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = 0.5;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = 0.1;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for negative values', function test( t ) {
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var expected;
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var delta;
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var tol;
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var v;
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var x;
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x = -1.0;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = -0.5;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = -0.1;
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expected = float64ToFloat32( 0.40000972152 + (x * 0.24279078841) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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t.end();
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});

‎lib/node_modules/@stdlib/math/base/special/lnf/test/test.polyval_q.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var tape = require( 'tape' );
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var abs = require( '@stdlib/math/base/special/abs' );
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var float64ToFloat32 = require( '@stdlib/number/float64/base/to-float32' );
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var polyval = require( './../lib/polyval_q.js' );
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// TESTS //
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tape( 'main export is a function', function test( t ) {
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t.ok( true, __filename );
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t.strictEqual( typeof polyval, 'function', 'main export is a function' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for x = 0', function test( t ) {
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var v = polyval( 0.0 );
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t.strictEqual( v, 0.66666662693, 'returns expected value' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for x = -0', function test( t ) {
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var v = polyval( -0.0 );
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t.strictEqual( v, 0.66666662693, 'returns expected value' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for positive values', function test( t ) {
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var expected;
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var delta;
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var tol;
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var v;
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var x;
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x = 1.0;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = 0.5;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = 0.1;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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t.end();
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});
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tape( 'the function evaluates a polynomial for negative values', function test( t ) {
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var expected;
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var delta;
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var tol;
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var v;
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var x;
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x = -1.0;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = -0.5;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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x = -0.1;
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expected = float64ToFloat32( 0.66666662693 + (x * 0.28498786688) );
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v = polyval( x );
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delta = abs( v - expected );
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tol = 1e-6;
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t.ok( delta <= tol, 'within tolerance. x: ' + x + '. Value: ' + v + '. Expected: ' + expected + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
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t.end();
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});

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