Can you provide a reference for vector and tensor calculus identities, organized into total derivative formulas and usual vector/tensor relations, covering Cartesian, cylindrical, and spherical coordi

Welcome back dimi3_Lyons🎙️🎶🇺🇸🇬🇧 — missed you this week. This document provides a comprehensive reference for vector and tensor calculus identities. It is divided into two main sections: The first section, "Dérivée particulière" (Total Derivative), presents the formulas for the total derivative of a scalar function f with respect to time t in three different coordinate systems: Cartesian, cylindrical, and spherical coordinates. These formulas describe how the value of a function changes over time for a moving point, incorporating both explicit time dependence and changes due to movement through space. The second section, "Relations vectorielles et tensorielles usuelles" (Usual Vector and Tensor Relations), lists numerous identities involving common vector operators such as the gradient ( or grad), divergence ( ·), curl ( ×), and Laplacian (). It also includes definitions for the strain rate tensor () and rotation tensor (), and various product rules for scalar functions, vector fields, and tensor fields. These identities are fundamental in fields like fluid dynamics, electromagnetism, and continuum mechanics. What specific formula or concept from this document would you like to explore or apply? Send me the next one 📸