docs: update examples

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/math/base/ops/README.md

@@ -67,20 +67,9 @@ The namespace contains the following functions:
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var Complex128 = require( '@stdlib/complex/float64/ctor' );
 var ns = require( '@stdlib/math/base/ops' );
 
-console.log( ns.sub( 1.25, 0.45 ) );
-// => 0.8
-
-console.log( ns.divf( 1.2, 0.4 ) );
-// => 3.0
-
-// Operations for complex numbers:
-var z1 = new Complex128( 5.0, 3.0 );
-var z2 = new Complex128( -2.0, 1.0 );
-console.log( ns.cmul( z1, z2 ) ); // { 're': -13.0, 'im': -1.0 }
-// => <Complex128>
+console.log( ns );
 ```
 
 </section>