#include <stdlib.h>
#include <stdio.h>
#include <math.h>

#define CUBE(X) (X)*(X)*(X)
#define SQUARE(X) (X)*(X)

const char * __out_format = "%0.3f \t %0.3f \n";

float calc_func_value( float x )
{
      if( x > 2 ) {
            return tanf( (CUBE(x) - 1) * 0.5 ) + sqrtf(x);
      }
      if ( x > 0 && x <= 2 ) {
            return logf(2.0/3.0 * x) - sinf(0.5 * x );
      }
      return expf(-1*x) + 2 * SQUARE(x);
}

void print_table(){
      float start = -3.0F;
      float step = 0.3F;
      float end = 4.0F;
      printf("x \t z \n");
      for(float x = start ; x < end; x += step ){
            float z = calc_func_value(x);
            printf(__out_format, x, z);
      }
}


int main( int __argc, char ** __argv ) {
    print_table();
    return 0;
}