diff --git a/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.js b/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.js
index c6defb0df376..71e82a4d00a1 100644
--- a/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.js
@@ -23,8 +23,7 @@
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var randu = require( '@stdlib/random/base/randu' );
-var abs = require( '@stdlib/math/base/special/abs' );
-var EPS = require( '@stdlib/constants/float64/eps' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var boxcoxinv = require( './../lib' );
 
 
@@ -93,8 +92,6 @@ tape( 'the function returns `NaN` if `x` is positive and `lambda` is less than n
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for positive medium numbers', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -105,21 +102,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = mediumPositive.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.5 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 4 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for negative medium numbers', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -130,21 +119,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = mediumNegative.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for positive small numbers', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -155,21 +136,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = smallPositive.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for negative small numbers', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -180,21 +153,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = smallNegative.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for tiny numbers', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -205,21 +170,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = tiny.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 0 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation when `lambda` is zero', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -230,13 +187,7 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = lambdaZero.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 1 ), true, 'returns expected value' );
 	}
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.native.js
index b8aed76a7157..579a106541f2 100644
--- a/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/boxcoxinv/test/test.native.js
@@ -24,8 +24,7 @@ var resolve = require( 'path' ).resolve;
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
 var randu = require( '@stdlib/random/base/randu' );
-var abs = require( '@stdlib/math/base/special/abs' );
-var EPS = require( '@stdlib/constants/float64/eps' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -102,8 +101,6 @@ tape( 'the function returns `NaN` if `x` is positive and `lambda` is less than n
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for positive medium numbers', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -114,21 +111,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = mediumPositive.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.5 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 4 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for negative medium numbers', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -139,21 +128,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = mediumNegative.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for positive small numbers', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -164,21 +145,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = smallPositive.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for negative small numbers', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -189,21 +162,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = smallNegative.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 2 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation for tiny numbers', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -214,21 +179,13 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = tiny.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 0 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function computes the inverse of a one-parameter Box-Cox transformation when `lambda` is zero', opts, function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var y;
 	var b;
@@ -239,13 +196,7 @@ tape( 'the function computes the inverse of a one-parameter Box-Cox transformati
 	y = lambdaZero.y;
 	for ( i = 0; i < expected.length; i++ ) {
 		b = boxcoxinv( x[ i ], y[ i ] );
-		if ( b === expected[ i ] ) {
-			t.strictEqual( b, expected[ i ], 'returns '+b+' when provided '+x[i]+' and '+y[i]+'.' );
-		} else {
-			delta = abs( expected[ i ] - b );
-			tol = 2.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. returns '+b+' when provided '+x[i]+' and '+y[i]+'. expected: '+expected[i]+'. delta: '+delta+'. tol: ' +tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( b, expected[ i ], 1 ), true, 'returns expected value' );
 	}
 	t.end();
 });