Taking computer science and math summer classes for engineering as an incoming freshman undergrad?

[mikemac]

@austinmshauri writes: If you take any college courses after high school, some colleges will consider you a transfer and you’ll be ineligible for freshman grants.

This is good advice, you want to be careful about this, but not a problem at any UC.

A freshman applicant is currently in high school or has graduated from high school but has not enrolled in a regular (non-summer) session at a college or university. If you’ve completed college courses during high school (through summer after graduation), you’re still considered a freshman applicant
http://admission.universityofcalifornia.edu/freshman/index.html