in reply to Logical expression style
Operator at the beginning is better for end-of-line comments--I wan't those immediatly after the thing being commented upon, not after enclosing syntax elements.
Think about column addition:
That makes for readable code:+45 -12 + 3
That works for booleans sometimes, too.$x= $principle # last month's value +$interest # interest between last payment and today -$payment # current remittence ;