The mathematical equation that looks intimidating? It's actually the formula for a heart shape on a coordinate plane. That's right—someone turned their romantic feelings into a differential equation.
The look of shock when she realizes she's been given a love confession disguised as calculus homework is priceless. This is what happens when math nerds flirt. No "do you like me, check yes or no"—just straight to cardioid functions.
Honestly, this is probably the most elegant rejection-proof method ever devised. If they don't understand it, they'll just hand it back. If they do plot it and see the heart, well... you've found your algebraic soulmate.