You prefer a highly visual, modern layout or are looking specifically for a textbook on multivariable calculus (though this covers partial differentiation). New York University specific university exam (e.g., CU, DU, Patna) or a competitive exam specific topic
Covers Euler's theorem and functions of multiple variables. 3. Theoretical Rigor & Clarity differential calculus by das gupta pdf
The textbook (often co-authored with S. B. Prasad) is a standard academic resource widely used for undergraduate courses (B.A./B.Sc.) and competitive exams like JEE. You prefer a highly visual, modern layout or