docs: update readme examples

Signed-off-by: Gunj Joshi <[email protected]>

Author: gunjjoshi

lib/node_modules/@stdlib/math/base/special/ldexp/README.md

@@ -182,46 +182,19 @@ double stdlib_base_ldexp( const double frac, const int32_t exp );
 
 ```c
 #include "stdlib/math/base/special/ldexp.h"
-#include "stdlib/math/base/special/frexp.h"
-#include "stdlib/math/base/special/pow.h"
-#include <stdlib.h>
 #include <stdint.h>
 #include <stdio.h>
-#include <inttypes.h>
-#include <math.h>
-
-static double rand_double() {
-    int r = rand();
-    return (double)r / ( (double)RAND_MAX + 1.0 );
-}
 
 int main( void ) {
-    double sign;
-    double frac;
-    int32_t exp;
-    double x;
-    double v;
+    double y;
     int i;
 
-    for ( i = 0; i < 100; i++ ) {
-        if ( rand_double() < 0.5 ) {
-            sign = -1.0;
-        } else {
-            sign = 1.0;
-        }
-
-        // Generate a random number:
-        frac = rand_double() * 10.0;
-        exp = (int32_t)( rand_double() * 616.0 ) - 308;
-        x = sign * frac * stdlib_base_pow( 10.0, (double)exp );
-
-        // Break the number into a normalized fraction and an integer power of two:
-        stdlib_base_frexp( x, &frac, &exp );
-
-        // Reconstitute the original number:
-        v = stdlib_base_ldexp( frac, exp );
+    const double frac[] = { 0.5, 5.0, 0.0, 3.5, 7.9 };
+    const int32_t exp[] = { 3, -2, 20, 39, 14 };
 
-        printf( "%e = %lf * 2^%" PRId32 " = %e\n", x, frac, exp, v );
+    for ( i = 0; i < 5; i++ ) {
+        y = stdlib_base_ldexp( frac[ i ], exp[ i ] );
+        printf( "ldexp(%lf, %d) = %lf\n", frac[ i ], exp[ i ], y );
     }
 }
 ```