diff --git a/lib/node_modules/@stdlib/math/base/special/cot/test/test.js b/lib/node_modules/@stdlib/math/base/special/cot/test/test.js
index 884500da953d..52c6804d3bec 100644
--- a/lib/node_modules/@stdlib/math/base/special/cot/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/cot/test/test.js
@@ -394,3 +394,15 @@ tape( 'if provided `-infinity`, the function returns `NaN`', function test( t )
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `0`, the function returns `+infinity`', function test( t ) {
+	var v = cot( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', function test( t ) {
+	var v = cot( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/cot/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/cot/test/test.native.js
index 591632c2c071..b48b9150ca16 100644
--- a/lib/node_modules/@stdlib/math/base/special/cot/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/cot/test/test.native.js
@@ -403,3 +403,15 @@ tape( 'if provided `-infinity`, the function returns `NaN`', opts, function test
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `0`, the function returns `+infinity`', opts, function test( t ) {
+	var v = cot( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', opts, function test( t ) {
+	var v = cot( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/cotd/test/test.js b/lib/node_modules/@stdlib/math/base/special/cotd/test/test.js
index a500668b9dca..c164f046ef16 100644
--- a/lib/node_modules/@stdlib/math/base/special/cotd/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/cotd/test/test.js
@@ -128,3 +128,15 @@ tape( 'if provided `-180.0`, the function returns `+Infinity`', function test( t
 	t.strictEqual( v, PINF, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `0`, the function returns `+infinity`', function test( t ) {
+	var v = cotd( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', function test( t ) {
+	var v = cotd( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/cotd/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/cotd/test/test.native.js
index 9a8d5d931850..30f79c84ab7e 100644
--- a/lib/node_modules/@stdlib/math/base/special/cotd/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/cotd/test/test.native.js
@@ -137,3 +137,15 @@ tape( 'if provided `-180.0`, the function returns `+Infinity`', opts, function t
 	t.strictEqual( v, PINF, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `0`, the function returns `+infinity`', opts, function test( t ) {
+	var v = cotd( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', opts, function test( t ) {
+	var v = cotd( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/csc/test/test.js b/lib/node_modules/@stdlib/math/base/special/csc/test/test.js
index 230ab21e70c6..136d51f66d93 100644
--- a/lib/node_modules/@stdlib/math/base/special/csc/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/csc/test/test.js
@@ -368,29 +368,41 @@ tape( 'the function computes the cosecant (tiny negative values)', function test
 });
 
 tape( 'if provided a multiple of `-pi`, the function does not return `~+infinity` due to floating-point rounding errors', function test( t ) {
-	t.notEqual(csc(-PI), PINF, 'returns expected value');
+	t.notEqual( csc( -PI ), PINF, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided a multiple of `pi`, the function does not return `~-infinity`', function test( t ) {
-	t.notEqual(csc(PI), NINF, 'returns expected value');
+	t.notEqual( csc( PI ), NINF, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided a `NaN`, the function returns `NaN`', function test( t ) {
-	var v = csc(NaN);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+	var v = csc( NaN );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided `+infinity`, the function returns `NaN`', function test( t ) {
-	var v = csc(PINF);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+	var v = csc( PINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided `-infinity`, the function returns `NaN`', function test( t ) {
-	var v = csc(NINF);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+	var v = csc( NINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `+0`, the function returns `+infinity`', function test( t ) {
+	var v = csc( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', function test( t ) {
+	var v = csc( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/math/base/special/csc/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/csc/test/test.native.js
index 3a3148b2ffb6..d73f1bc2b930 100644
--- a/lib/node_modules/@stdlib/math/base/special/csc/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/csc/test/test.native.js
@@ -377,29 +377,41 @@ tape( 'the function computes the cosecant (tiny negative values)', opts, functio
 });
 
 tape( 'if provided a multiple of `-pi`, the function does not return `~+infinity` due to floating-point rounding errors', opts, function test( t ) {
-	t.notEqual(csc(-PI), PINF, 'returns expected value');
+	t.notEqual( csc( -PI ), PINF, 'returns expected value' );
 	t.end();
 });
 
 tape( 'if provided a multiple of `pi`, the function does not return `~-infinity`', opts, function test( t ) {
-	t.notEqual(csc(PI), NINF, 'returns expected value');
+	t.notEqual( csc( PI ), NINF, 'returns expected value' );
 	t.end();
 });
 
-tape( 'if provided a `NaN`, the function returns `expected value`', opts, function test( t ) {
-	var v = csc(NaN);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+tape( 'if provided a `NaN`, the function returns `NaN`', opts, function test( t ) {
+	var v = csc( NaN );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
 
-tape( 'if provided `+infinity`, the function returns `expected value`', opts, function test( t ) {
-	var v = csc(PINF);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+tape( 'if provided `+infinity`, the function returns `NaN`', opts, function test( t ) {
+	var v = csc( PINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
 
-tape( 'if provided `-infinity`, the function returns `expected value`', opts, function test( t ) {
-	var v = csc(NINF);
-	t.strictEqual(isnan(v), true, 'returns expected value');
+tape( 'if provided `-infinity`, the function returns `NaN`', opts, function test( t ) {
+	var v = csc( NINF );
+	t.strictEqual( isnan( v ), true, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `+0`, the function returns `+infinity`', opts, function test( t ) {
+	var v = csc( 0.0 );
+	t.strictEqual( v, PINF, 'returns expected value' );
+	t.end();
+});
+
+tape( 'if provided `-0`, the function returns `-infinity`', opts, function test( t ) {
+	var v = csc( -0.0 );
+	t.strictEqual( v, NINF, 'returns expected value' );
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/math/base/special/sec/test/test.js b/lib/node_modules/@stdlib/math/base/special/sec/test/test.js
index 2eb15b92008e..8b06cdfa6671 100644
--- a/lib/node_modules/@stdlib/math/base/special/sec/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/sec/test/test.js
@@ -394,3 +394,15 @@ tape( 'if provided `-infinity`, the function returns `NaN`', function test( t )
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `+-0`, the function returns `1`', function test( t ) {
+	var v;
+
+	v = sec( 0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	v = sec( -0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/sec/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/sec/test/test.native.js
index e86680cc423f..f1443d2cbe0b 100644
--- a/lib/node_modules/@stdlib/math/base/special/sec/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/sec/test/test.native.js
@@ -403,3 +403,15 @@ tape( 'if provided `-infinity`, the function returns `expected value`', opts, fu
 	t.strictEqual( isnan( v ), true, 'returns expected value' );
 	t.end();
 });
+
+tape( 'if provided `+-0`, the function returns `1`', opts, function test( t ) {
+	var v;
+
+	v = sec( 0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	v = sec( -0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/secd/test/test.js b/lib/node_modules/@stdlib/math/base/special/secd/test/test.js
index 93e157f3343a..b8f24e8221d7 100644
--- a/lib/node_modules/@stdlib/math/base/special/secd/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/special/secd/test/test.js
@@ -107,3 +107,15 @@ tape( 'the function returns `+Infinity` if provided an odd multiple of `90`', fu
 	t.strictEqual( v, PINF, 'returns expected value' );
 	t.end();
 });
+
+tape( 'the function returns `1` if provided `+-0`', function test( t ) {
+	var v;
+
+	v = secd( 0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	v = secd( -0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	t.end();
+});
diff --git a/lib/node_modules/@stdlib/math/base/special/secd/test/test.native.js b/lib/node_modules/@stdlib/math/base/special/secd/test/test.native.js
index 0f1dca9215dc..09e7e284f9d4 100644
--- a/lib/node_modules/@stdlib/math/base/special/secd/test/test.native.js
+++ b/lib/node_modules/@stdlib/math/base/special/secd/test/test.native.js
@@ -116,3 +116,15 @@ tape( 'the function returns `+Infinity` if provided an odd multiple of `90`', op
 	t.strictEqual( v, PINF, 'returns expected value' );
 	t.end();
 });
+
+tape( 'the function returns `1` if provided `+-0`', opts, function test( t ) {
+	var v;
+
+	v = secd( 0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	v = secd( -0.0 );
+	t.strictEqual( v, 1.0, 'returns expected value' );
+
+	t.end();
+});