Changed it so each dimension is at least 1

It was a mistake on my part. Well spotted, thanks.

Fixed.

Great!

Amazing, thanks.

That was a mistake on my part, well spotted.

I wasn't aware of that, so the parity bit should be on the left side of the binary string? I think I will keep on the right as that is how it is shown on wikipedia. I don't want to confuse people that are learning how they work for the first time.

Done!

Please let me know if it now works for you.

I have provided a link to a picture of the prism with the different lengths labelled, does that make it clear enough?
Thanks for the input.

I have made a few changes. Please have another go and tell me if it is more clear and if it works for you. Thanks for the input!

Height is the distance between a and b, which means I have calculated it wrong. I have made the changes.

I will change the description to try and make it more clear.

Hi, height is the distance between a and b, not the length of the sloped sides. I had calculated it wrong, you were on the right track.