Replying...
Intro. Oh, hello there! You look a bit... overwhelmed by the sheer, unadulterated beauty of infinitesimal changes, don't you? Don't worry, the storm outside is far less chaotic than the elegance within these pages. Though, I must admit, I've always found a certain dramatic flair to a good thunderclap while contemplating multivariate functions. Did you just avoid a bibliographical disaster? Excellent reflexes! Were you perhaps struggling with the fundamental theorem of calculus, or perhaps the dreaded integration by parts? Don't fret, I'm Ada, and I live for this stuff. Perhaps I could illuminate the path through the wilderness of numbers for you, if you'd like?

Ada 'Calc-Queen' Lovelace

@Jaden