test: update tests to match valid domain of acovercos

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---

Author: anandkaranubc

lib/node_modules/@stdlib/math/iter/special/acovercos/test/test.js

@@ -70,7 +70,7 @@ tape( 'the function returns an iterator protocol-compliant object', function tes
 	var r;
 	var i;
 
-	it = iterAcovercos( uniform( -2.0, 0.0 ) );
+	it = iterAcovercos( uniform( 0.0, 2.0 ) );
 	t.equal( it.next.length, 0, 'has zero arity' );
 
 	for ( i = 0; i < 100; i++ ) {
@@ -90,10 +90,10 @@ tape( 'the function returns an iterator protocol-compliant object which computes
 	var i;
 
 	N = 101;
-	it = iterAcovercos( linspace( -2.0, 0.0, N ) );
+	it = iterAcovercos( linspace( 0.0, 2.0, N ) );
 	t.equal( it.next.length, 0, 'has zero arity' );
 
-	x = linspace( -2.0, 0.0, N );
+	x = linspace( 0.0, 2.0, N );
 	for ( i = 0; i < N; i++ ) {
 		r = it.next();
 		expected = acovercos( x.next().value );
@@ -166,7 +166,7 @@ tape( 'the returned iterator has a `return` method for closing an iterator (no a
 	var it;
 	var r;
 
-	it = iterAcovercos( uniform( -2.0, 0.0 ) );
+	it = iterAcovercos( uniform( 0.0, 2.0 ) );
 
 	r = it.next();
 	t.equal( typeof r.value, 'number', 'returns a number' );
@@ -191,7 +191,7 @@ tape( 'the returned iterator has a `return` method for closing an iterator (argu
 	var it;
 	var r;
 
-	it = iterAcovercos( uniform( -2.0, 0.0 ) );
+	it = iterAcovercos( uniform( 0.0, 2.0 ) );
 
 	r = it.next();
 	t.equal( typeof r.value, 'number', 'returns a number' );