Quietly Lurking, Quietly Working

Oh man, I've been pulled in so many different directions lately.

Over the past few weeks, I have:

• Watched Last of Us from start to finish as my fiance played it (WOW, what an amazing game)
• Resubbed to World of Warcraft (ugh, Mists is terrible)
• Started playing Guild Wars 2 again
• WRITTEN A LOT OF STUFF
• Watched Minority Report, Tron, Tron: Legacy, The Fifth Element, Daybreakers, and kept up with Breaking Bad and Dexter
• Messed around with C
• Done some really fulfilling sketches for character designs

I've been really really busy. But the main reason I'm posting today is to say, "LOOK, LOOK!! I'm coding things on my own!!"

Take a gander! :)

These are exercises in my textbook -- which I have since decided that taking the notes down in my notebook is time-consuming enough... I don't think I'll be uploading them to this blog anymore. Instead, I'll be sharing the source that I write, when I feel like it. C: I'm stingy, I know.

So, the program I'm particularly fond of at this time is this exercise. I was prompted to find the volume of a sphere using a constant. So I did:

#include <stdio.h>

#define RADIUS 10.0f

int main(void)

{

   float volume;

   volume = (4.0f/3.0f * 3.14159 * (RADIUS * RADIUS * RADIUS));

   printf("Radius = %.1f\n", RADIUS);

   printf("Volume = %.3f\n", volume);

   return 0;

}

It was pretty nifty! Compiled and performed just fine out of Xcode (which is what I use on Mac because I haven't had time to investigate any others -- on the Zombie, I've just been using Mousepad to make changes so far). But I wondered if there was another way to do it. So I experimented...

#include <stdio.h>

int main(void)

{

   float radius, volume;

   radius = 10.0f

   volume = (4.0f/3.0f * 3.14159 * (radius * radius * radius));

   printf("Radius = %.1f\n", radius);

   printf("Volume = %.3f\n", volume);

   return 0;

}

Wouldn't you know! It compiled and worked just fine, too!! Gave the same answer I calculated manually on my calculator (which is 4188.787, rounded as the final decimal repeats). I'm so thrilled!

The second part of the exercise stated to alter the program so the user enters the radius before the calculation is made. Here goes:

#include <stdio.h>

int main(void)

{

   float radius, volume;

   printf("Enter radius of sphere: ");

   scanf("%f", &radius);

   volume = (4.0f/3.0f * 3.14159 * (radius * radius * radius));

   printf("Volume of sphere: %.3f\n", volume);

return 0;

}

Ahh, works perfectly. So I now have a fifteen line program that calculates the volume of a sphere... You know, just in case. ;D