Learn English – How to use “if you will” in third person

The next person to look at the code will be so grateful that you wrote accurate comments that he/she will not care a bit about small grammar issues. Don't let this sort of thing slow you down at all.

In my own code, I use type 2 (present tense) for declarations and other things that are always true, independent of execution. For example, consider a subroutine that computes the arc tangent.

// Computes the arc tangent of y/x double atan(x,y);

In the middle of running code, I use the imperative. For example,

// Reject 0/0

// Handle x==0 specially

// Compute sign of result

// Map everything into first quadrant

Hope that helps.