diff --git a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.js b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.js
index 24b8e864e89b..06cead9af53f 100644
--- a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.js
+++ b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.js
@@ -23,40 +23,10 @@
 var tape = require( 'tape' );
 var Float32Array = require( '@stdlib/array/float32' );
 var isnan = require( '@stdlib/assert/is-nan' );
-var EPS = require( '@stdlib/constants/float32/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
 var snrm2 = require( './../lib/ndarray.js' );
 
 
-// FUNCTIONS //
-
-/**
-* Tests for element-wise approximate equality.
-*
-* @private
-* @param {Object} t - test object
-* @param {Collection} actual - actual values
-* @param {Collection} expected - expected values
-* @param {number} rtol - relative tolerance
-*/
-function isApprox( t, actual, expected, rtol ) {
-	var delta;
-	var tol;
-	var i;
-
-	t.strictEqual( actual.length, expected.length, 'returns expected value' );
-	for ( i = 0; i < expected.length; i++ ) {
-		if ( actual[ i ] === expected[ i ] ) {
-			t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
-		} else {
-			delta = abs( actual[ i ] - expected[ i ] );
-			tol = rtol * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
-		}
-	}
-}
-
-
 // TESTS //
 
 tape( 'main export is a function', function test( t ) {
@@ -77,22 +47,22 @@ tape( 'the function calculates the L2-norm of a vector', function test( t ) {
 	x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 7.4, 2.0 );
+	t.strictEqual( isAlmostSameValuef( z, 7.416198253631592, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ -4.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 4.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 4.0, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 9.0e-20, 9.0e-20, 1.2e-19 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 1.7492856287692852e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.7492856287692852e-19, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e-20, 1.0e-20, 1.0e-20, 1.0e-20 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 1.999999936531045e-20, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.999999936531045e-20, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e20, 1.0e5, 1.0e20, 1.0e5 ] );
 
@@ -107,7 +77,7 @@ tape( 'the function calculates the L2-norm of a vector', function test( t ) {
 	x = new Float32Array( [ 1.4e-19, 1.5e-19, 1.4e-19, 0.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 2.4839484162537295e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 2.4839484162537295e-19, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
@@ -163,7 +133,7 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
 	N = 4;
 	z = snrm2( N, x, 2, 0 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -186,7 +156,7 @@ tape( 'the function supports a negative `stride` parameter', function test( t )
 	N = 4;
 	z = snrm2( N, x, -2, x.length-2 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -208,7 +178,7 @@ tape( 'the function supports an `offset` parameter', function test( t ) {
 	N = 4;
 
 	z = snrm2( N, x, 2, 1 );
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.native.js b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.native.js
index 2da97e775d63..4e16ee05f85a 100644
--- a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.native.js
+++ b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.ndarray.native.js
@@ -24,8 +24,7 @@ var resolve = require( 'path' ).resolve;
 var tape = require( 'tape' );
 var Float32Array = require( '@stdlib/array/float32' );
 var isnan = require( '@stdlib/assert/is-nan' );
-var EPS = require( '@stdlib/constants/float32/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -37,35 +36,6 @@ var opts = {
 };
 
 
-// FUNCTIONS //
-
-/**
-* Tests for element-wise approximate equality.
-*
-* @private
-* @param {Object} t - test object
-* @param {Collection} actual - actual values
-* @param {Collection} expected - expected values
-* @param {number} rtol - relative tolerance
-*/
-function isApprox( t, actual, expected, rtol ) {
-	var delta;
-	var tol;
-	var i;
-
-	t.strictEqual( actual.length, expected.length, 'returns expected value' );
-	for ( i = 0; i < expected.length; i++ ) {
-		if ( actual[ i ] === expected[ i ] ) {
-			t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
-		} else {
-			delta = abs( actual[ i ] - expected[ i ] );
-			tol = rtol * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
-		}
-	}
-}
-
-
 // TESTS //
 
 tape( 'main export is a function', opts, function test( t ) {
@@ -86,22 +56,22 @@ tape( 'the function calculates the L2-norm of a vector', opts, function test( t
 	x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 7.4, 2.0 );
+	t.strictEqual( isAlmostSameValuef( z, 7.416198253631592, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ -4.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 4.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 4.0, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 9.0e-20, 9.0e-20, 1.2e-19 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 1.7492856287692852e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.7492856287692852e-19, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e-20, 1.0e-20, 1.0e-20, 1.0e-20 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 1.999999936531045e-20, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.999999936531045e-20, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e20, 1.0e5, 1.0e20, 1.0e5 ] );
 
@@ -116,7 +86,7 @@ tape( 'the function calculates the L2-norm of a vector', opts, function test( t
 	x = new Float32Array( [ 1.4e-19, 1.5e-19, 1.4e-19, 0.0 ] );
 
 	z = snrm2( x.length, x, 1, 0 );
-	isApprox( t, z, 2.4839484162537295e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 2.4839484162537295e-19, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
@@ -172,7 +142,7 @@ tape( 'the function supports a `stride` parameter', opts, function test( t ) {
 	N = 4;
 	z = snrm2( N, x, 2, 0 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -195,7 +165,7 @@ tape( 'the function supports a negative `stride` parameter', opts, function test
 	N = 4;
 	z = snrm2( N, x, -2, x.length-2 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -217,7 +187,7 @@ tape( 'the function supports an `offset` parameter', opts, function test( t ) {
 	N = 4;
 
 	z = snrm2( N, x, 2, 1 );
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.js b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.js
index e9e0fe763f38..f72b3212467b 100644
--- a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.js
+++ b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.js
@@ -23,40 +23,10 @@
 var tape = require( 'tape' );
 var Float32Array = require( '@stdlib/array/float32' );
 var isnan = require( '@stdlib/assert/is-nan' );
-var EPS = require( '@stdlib/constants/float32/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
 var snrm2 = require( './../lib/snrm2.js' );
 
 
-// FUNCTIONS //
-
-/**
-* Tests for element-wise approximate equality.
-*
-* @private
-* @param {Object} t - test object
-* @param {Collection} actual - actual values
-* @param {Collection} expected - expected values
-* @param {number} rtol - relative tolerance
-*/
-function isApprox( t, actual, expected, rtol ) {
-	var delta;
-	var tol;
-	var i;
-
-	t.strictEqual( actual.length, expected.length, 'returns expected value' );
-	for ( i = 0; i < expected.length; i++ ) {
-		if ( actual[ i ] === expected[ i ] ) {
-			t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
-		} else {
-			delta = abs( actual[ i ] - expected[ i ] );
-			tol = rtol * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
-		}
-	}
-}
-
-
 // TESTS //
 
 tape( 'main export is a function', function test( t ) {
@@ -77,22 +47,22 @@ tape( 'the function calculates the L2-norm of a vector', function test( t ) {
 	x = new Float32Array( [ 2.0, -4.0, -5.0, 6.0, 0.0, 5.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 10.3, 2.0 );
+	t.strictEqual( isAlmostSameValuef( z, 10.29563045501709, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ -4.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 4.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 4.0, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 9.0e-20, 9.0e-20, 1.2e-19 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 1.7492856287692852e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.7492856287692852e-19, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e-20, 1.0e-20, 1.0e-20, 1.0e-20 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 1.999999936531045e-20, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.999999936531045e-20, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e20, 1.0e5, 1.0e20, 1.0e5 ] );
 
@@ -107,7 +77,7 @@ tape( 'the function calculates the L2-norm of a vector', function test( t ) {
 	x = new Float32Array( [ 1.4e-19, 1.5e-19, 1.4e-19, 0.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 2.4839484162537295e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 2.4839484162537295e-19, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
@@ -163,7 +133,7 @@ tape( 'the function supports a `stride` parameter', function test( t ) {
 	N = 4;
 	z = snrm2( N, x, 2 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -182,10 +152,10 @@ tape( 'the function supports specifying a negative stride', function test( t ) {
 		0.4, // 0
 		9.0
 	]);
-	expected = 0.81;
+	expected = 0.8124038577079773;
 
 	actual = snrm2( 4, x, -2 );
-	isApprox( t, actual, expected, 2.0 );
+	t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
 	t.end();
 });
 
diff --git a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.native.js b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.native.js
index f143ec2d0557..32ed1c8bbdc2 100644
--- a/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.native.js
+++ b/lib/node_modules/@stdlib/blas/base/snrm2/test/test.snrm2.native.js
@@ -24,8 +24,7 @@ var resolve = require( 'path' ).resolve;
 var tape = require( 'tape' );
 var Float32Array = require( '@stdlib/array/float32' );
 var isnan = require( '@stdlib/assert/is-nan' );
-var EPS = require( '@stdlib/constants/float32/eps' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 
@@ -37,35 +36,6 @@ var opts = {
 };
 
 
-// FUNCTIONS //
-
-/**
-* Tests for element-wise approximate equality.
-*
-* @private
-* @param {Object} t - test object
-* @param {Collection} actual - actual values
-* @param {Collection} expected - expected values
-* @param {number} rtol - relative tolerance
-*/
-function isApprox( t, actual, expected, rtol ) {
-	var delta;
-	var tol;
-	var i;
-
-	t.strictEqual( actual.length, expected.length, 'returns expected value' );
-	for ( i = 0; i < expected.length; i++ ) {
-		if ( actual[ i ] === expected[ i ] ) {
-			t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
-		} else {
-			delta = abs( actual[ i ] - expected[ i ] );
-			tol = rtol * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
-		}
-	}
-}
-
-
 // TESTS //
 
 tape( 'main export is a function', opts, function test( t ) {
@@ -86,22 +56,22 @@ tape( 'the function calculates the L2-norm of a vector', opts, function test( t
 	x = new Float32Array( [ 1.0, -2.0, -4.0, 5.0, 0.0, 3.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 7.4, 2.0 );
+	t.strictEqual( isAlmostSameValuef( z, 7.416198253631592, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ -4.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 4.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 4.0, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 9.0e-20, 9.0e-20, 1.2e-19 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 1.7492856287692852e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.7492856287692852e-19, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e-20, 1.0e-20, 1.0e-20, 1.0e-20 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 1.999999936531045e-20, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 1.999999936531045e-20, 0 ), true, 'returns expected value' );
 
 	x = new Float32Array( [ 1.0e20, 1.0e5, 1.0e20, 1.0e5 ] );
 
@@ -116,7 +86,7 @@ tape( 'the function calculates the L2-norm of a vector', opts, function test( t
 	x = new Float32Array( [ 1.4e-19, 1.5e-19, 1.4e-19, 0.0 ] );
 
 	z = snrm2( x.length, x, 1 );
-	isApprox( t, z, 2.4839484162537295e-19, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 2.4839484162537295e-19, 0 ), true, 'returns expected value' );
 
 	t.end();
 });
@@ -172,7 +142,7 @@ tape( 'the function supports a `stride` parameter', opts, function test( t ) {
 	N = 4;
 	z = snrm2( N, x, 2 );
 
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -191,10 +161,10 @@ tape( 'the function supports specifying a negative stride', opts, function test(
 		0.4, // 0
 		9.0
 	]);
-	expected = 0.81;
+	expected = 0.8124038577079773;
 
 	actual = snrm2( 4, x, -2 );
-	isApprox( t, actual, expected, 2.0 );
+	t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
 	t.end();
 });
 
@@ -220,7 +190,7 @@ tape( 'the function supports view offsets', opts, function test( t ) {
 	N = 4;
 
 	z = snrm2( N, x1, 2 );
-	isApprox( t, z, 5.0, 1.0 );
+	t.strictEqual( isAlmostSameValuef( z, 5.0, 0 ), true, 'returns expected value' );
 
 	t.end();
 });