The mathematical formulas of 1 and 128 are radical e980. I love you originated from a MV by Korean singer K.will called "I need you". The girl wrote a mathematical formula "128 radical e980" on the blackboard for the hero to answer, but the hero couldn't figure it out after thinking hard, so the girl picked up a brush and erased the upper part of the formula, which became English I Love You.

2. [(n+52.8) × 5–3.9343] ÷ 0.5-/kloc-0 × n (n = any number) Any real number, add 52.8, the result is multiplied by 5, and then subtract 3.4343. Multiply the result by 2, and finally subtract 10 times this number.

3, X2+(y+3√X2)2= 1 Draw a function image, which is a heart.

4.r=a( 1-cosθ) or r = a (1+cos θ) (a > 0) Horizontal direction? Health and emotional line

5.x2+(y-3√x2)2= 1 forms a love curve, which is the exclusive "love curve" of the Department of Mathematics.

128√e980, which means that I love you by folding paper or erasing the upper part, comes from K.will's "I Need You" mv and also appears in "I Love Your Uncle".