The Casio fx6300g is without doubt the second to worst graphing calculator of all time. The first being the fx6200g which is the same thing but not programmable. This calculator is basically just one of their programmable scientific calculators with extra pixels grafted onto the screen. Yes, its that bad.

For god knows what reason someone/some group of people in East Asia decided to clone this model of calculator. Unlike Sharp's EL506H/P, these didn't really stick around. They instead faded into obscurity, probably due to them being overpriced at ~$25 to $30. These probably only cost at max $10 each. I feel bad for kids who had to use these in school.

I have a "Corner Office ATC-139". Its fucking TERRIBLE, but I LOVE IT because of that!

Why? Because it's such a good programming challenge!

You get only 608 bytes of ram to work with. 208 bytes are permanently allocated to the 26 alphabetical variables, 400 for program space. You can partition those 400 bytes for more variable space.

The programming "language" is this god awful thing that is the programming equivalent of the world's longest run on sentence. You use the ":" character to separate commands. You only have 10 labels for jumping, and conditionals involve the "=>" character.

This is why I love this thing. It is so challenging to program on this thing that its so rewarding!

If your a programmer that loves a good challenge: Get one of these! Either the original or colones, it doesn't matter too much.

I'd lean towards the clones personally, as fx6300g's are probably going to be prices higher then the clones because "casio!".

You will have to deal with age related issues. Mine has issues with the lcd heat seal connector.

Fun calculator! Terrible, but fun!