the1iam over 15 years ago [hidden] are those the equations to form yotsuba in the last picture? 0 Reply Copy ID Copy Link
holocauxt over 15 years ago [hidden] Urgh... Trigonometry, my worst nightmare... 0 Reply Copy ID Copy Link
wanchan over 15 years ago [hidden] We were either provided calculators or had to have them reset. 1 Reply Copy ID Copy Link
anon153 about 13 years ago [hidden] These are calculus formulas. I'd add the calculus tag. 0 Reply Copy ID Copy Link