Applied Calculus: UNIT II: Functions of Several Variables

Functions of Several Variables: Introduction

In the package on introductory differentiation, rates of change of functions were shown to be measured by the derivative.

UNIT ‒ II

FUNTIONS OF SEVERAL VARIABLES

 

 

INTRODUCTION

 

In the package on introductory differentiation, rates of change of functions were shown to be measured by the derivative. Many applications require functions with more than one variable: the ideal gas law, for example, is

pV = kT

where p is the pressure, V the volume, T the absolute temperature of the gas, and k is a constant. Rearranging this equation as

P = kT / V

shows that p is a function of T and V. If one of the variables, say T, is kept fixed and V changes, then the derivative of p with respect to V measures the rate of change of pressure with respect to volume. In this case, it is called the partial derivative of p with respect to V and written as

∂p/ ∂V

 

Applied Calculus: UNIT II: Functions of Several Variables : Tag: Applied Calculus : - Functions of Several Variables: Introduction


Applied Calculus: UNIT II: Functions of Several Variables



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