Fix compile error in Bezier.java

[hiroshisuga]

What does this PR do?

Fixes compile error occurs at two special characters.

Closes Issue(s)

closes #...

Motivation

Probably depending on the locale of terminal where I compile the source code, I sometimes experienced compile errors.

More

I am not 100% sure if I am right in the second fix of the formula.

[antobinary]

Hi @hiroshisuga
I would think that just replacing the degree symbol would suffice in the second formula, you could keep the rad

If you still have the console errors, please share them here so others could search and find for future reference

[hiroshisuga]

Thanks for the suggestion. I changed.

BTW I do not really understand this formula: 44 deg = 44 * 180d / Math.PI.
This simply indicates how to convert radian to degree, and what the sentence wants to say is that 44 degree ( = 0.768 radian) is recommended. Thus 44 deg = 0.768 rad * 180d / Math.PI makes more sense at least to me...