KJ Wainwright video clips from lectures on Mathematical Economics and Calculus for Business 
Topics  Lectures  Examples 
Comments and notes  
OPMT 5700  
Matrix Algebra  
Multiplying Matrices  Lecture  Multiply two 3x3 matrices together  
Determinants: 2x2 case  Lecture  
Minors and Cofactors  Lecture  
Determinants: 3x3 case (Laplace Expansion)  Lecture  
Solving 2 equations with Matrix Inversion  Lecture  
Derivative Basics  Lectures  Examples

Comments and notes  
Notation & Definition  Lecture  
The Constant Rule  Lecture  
The Power Function Rule 
Lecture  
The SumDifference Rule  Lecture  
The Product Rule 
Lecture  
The Quotient Rule  Lecture  
The Chain Rule 1  Lecture  
The Chain Rule 2 (alternative method)  Lecture  
Applications of derivative rules  Lectures  Examples

Comments and notes  
Higher Derivatives  Lecture  
Concavity  Lecture  
One Variable Optimization  Lecture  Profit Max withcubic costs;  
Natural Logarithm and and the Number e  Lecture  
Multivariable Calculus  Lectures  Examples

Comments and notes  
Partial Derivatives 1: linear and cobbdouglas  Lecture  
Partial Derivatives 2: 2nd partials and cross partials  Lecture  
Implicit Function Theorem & the MRS, MRTS  Lecture  
Unconstrained Optimization  Lecture  The cubic example is from MyMathLab  
Optimization with Constraints  Lectures  Examples

Comments and notes  
Substitution method of 2 variable maximization  Lecture  Examples from MyMathLab  
MRTS and Cost Min in Production  Lecture  Utility Max by Substitution (the MRS)  Variation of the substitution method  
Intro to Lagrange Multiplier Method  Lecture  Examples of Lagrange (utility and Costs)  
Cost Min and Production with Lagrange  Lecture  3 Variable Lagrange (HW 10 Q5)  Compare this with MRTS method (substitution)  
Application: The Gains from Trade (2 Lagrange steps)  Lecture  Expected Utility and Insurance  
Inequality Constraints (KuhnTucker)  Lecture  Read Lecture notes from website before attempting these  
Statistics and Econometrics  
Multiple Regression using Excel  This example is a market demand estimation  
Regression Example MyMathlab Q4  Formula Page (PDF) to accompany video 