Apply suggestions from code review

Co-authored-by: Athan <kgryte@gmail.com>
Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/blas/ext/base/dvander/benchmark/c/benchmark.length.c

@@ -190,7 +190,7 @@ int main( void ) {
 		}
 	}
 	for ( i = MIN; i <= MAX; i++ ) {
-		len = (int)floor( pow( pow( 10, i ), 1.0/2.0 ) );
+		len = (int)pow( 10, i );
 		iter = ITERATIONS / pow( 10, i-1 );
 		for ( j = 0; j < REPEATS; j++ ) {
 			count += 1;