docs: change examples for complex/float64/base/sub

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---

Author: ShabiShett07

lib/node_modules/@stdlib/complex/float64/base/sub/README.md

@@ -69,23 +69,17 @@ var im = imag( v );
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var Complex128 = require( '@stdlib/complex/float64/ctor' );
-var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
+var Complex128Array = require( '@stdlib/array/complex128' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var csub = require( '@stdlib/complex/float64/base/sub' );
 
-var rand;
-var z1;
-var z2;
-var z3;
-var i;
-
-rand = discreteUniform( -50, 50 );
-for ( i = 0; i < 100; i++ ) {
-    z1 = new Complex128( rand(), rand() );
-    z2 = new Complex128( rand(), rand() );
-    z3 = csub( z1, z2 );
-    console.log( '(%s) - (%s) = %s', z1.toString(), z2.toString(), z3.toString() );
-}
+// Generate arrays of random values:
+var z1 = new Complex128Array( discreteUniform( 200, -50, 50 ) );
+var z2 = new Complex128Array( discreteUniform( 200, -50, 50 ) );
+
+// Perform element-wise computation:
+logEachMap( '( (%s) - (%s) = %s', z1, z2, csub );
 ```
 
 </section>

lib/node_modules/@stdlib/complex/float64/base/sub/examples/index.js

@@ -18,20 +18,14 @@
 
 'use strict';
 
-var Complex128 = require( '@stdlib/complex/float64/ctor' );
-var discreteUniform = require( '@stdlib/random/base/discrete-uniform' ).factory;
+var Complex128Array = require( '@stdlib/array/complex128' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
+var logEachMap = require( '@stdlib/console/log-each-map' );
 var csub = require( './../lib' );
 
-var rand;
-var z1;
-var z2;
-var z3;
-var i;
+// Generate arrays of random values:
+var z1 = new Complex128Array( discreteUniform( 200, -50, 50 ) );
+var z2 = new Complex128Array( discreteUniform( 200, -50, 50 ) );
 
-rand = discreteUniform( -50, 50 );
-for ( i = 0; i < 100; i++ ) {
-	z1 = new Complex128( rand(), rand() );
-	z2 = new Complex128( rand(), rand() );
-	z3 = csub( z1, z2 );
-	console.log( '(%s) - (%s) = %s', z1.toString(), z2.toString(), z3.toString() );
-}
+// Perform element-wise computation:
+logEachMap( '( (%s) - (%s) = %s', z1, z2, csub );