Math 18.02 Concourse – Calendar of topics and HW assignments  Fall 2018
The topics and assignments will change as the course proceeds!! Check back frequently. Last updated
December 13, 2018 12:53 PM
Seq.  Date  Topics  Assignments & References [Solutions] 
L1  Wed, Sept 5  Course overview. Coordinates in R^{2} and R^{3}. Vectors in R^{2} and R^{3} and vector algebra; magnitude of a vector, unit vectors, difference vector, distance. Vector equation of a line and parametric equations of a line in R^{2} and R^{3}.  Read sections 12.1 and 12.2 in the Edwards & Penney text. Problem Set #1 (due Wed, Sept 12) References: Notes on dot products and cross products Lecture #1 Notes (the sequence is all that matters) 
R1  Thurs, Sept 6  Parameterization of a line. Coordinatefree vector proofs.  
L2  Mon, Sept 10  Dot product of two vectors; angle between vectors; Law of Cosines; orthogonality; scalar and vector projections using the dot product. Equations for lines and planes. Cross product of two vectors in R^{3}.  
R2  Tues, Sept 11  Planes and linear equations; cross product of two vectors in R^{3}, continued. Applications to areas, volumes; triple scalar product.  Problem Set #2 (due Wed, Sept 19) Read sections 12.3 and 12.4 and the D. Determinants (4 pages) Supplement on Solving Systems of Linear Equations via Row Reduction 
L3  Wed, Sept 12  Algebra and geometry of lines and planes. Matrix methods and systems of linear equations, row reduction and parameterization of lines and planes. [Lecture #3 Notes]  
R3  Thurs, Sept 13  Matrix multiplication and inverse matrices.  
L4  Mon, Sept 17  Matrix methods, continued. Parameterized curves in R^{2} and R^{3} (vectorvalued functions); velocity vectors. [Java applet that may help you to understand parameterized curves: Wheel (choose the "Trace" option) and click on the double arrows to activate.] 
Problem Set #3 (due Wed, Sept 26) References: 
R4  Tues, Sept 18  Problem set questions. 

L5  Wed, Sept 19  Parameterized curves in R^{2} and R^{3} (vectorvalued functions); velocity vectors; unit tangent vector, acceleration vector; arclength, acceleration vector, curvature. Calculus of vectorvalued functions. Vectorvalued functions and applications in physics. Parameterized surfaces vs. surfaces described by equations; cylinders, spheres, hyperboloids, ellipsoids, etc. 

R5  Thurs, Sept 20  Limits and continuity of functions of several variables. Introduction to partial derivatives.  Read section 12.7 (Quadric Surfaces) Problem Set #4 (due Fri, Oct 5) 
L6  Mon, Sept 24  Functions of several variables and their level sets. Graphs and contours (level sets) of a function. Rate of change of a function of several variables  partial derivatives. Tangent plane to the graph of a function of two variables, linear approximation, differentials. [Lecture #6 Notes]  
R6  Tues, Sept 25  Exam topics: Vectors and vector algebra, dot product, cross product, applications to working with lines and planes, areas, volumes, angles, etc.; parameterized curves, velocity vectors, speed, arclength, unit tangent and normal vectors; partial derivatives, linear approximation, differentials, and directional derivative. You should also be familiar with methods for solving systems of linear equations (such as when finding the intersection of lines or planes) and related matrix ideas. Practice Questions for Exam #1 Solutions 

L7  Wed, Sept 26  Rate of change of a function along a parameterized path (basic Chain Rule). Gradients; using the gradient to find a normal vector to a curve or surface and equations for tangent lines to curves and tangent planes to surfaces.  
R7  Thurs, Sept 27  Implicit differentiation  a new perspective. Supplement on the Chain Rule and Implicit Differentiation. Applications in economics. Higher order derivatives, equality of mixed partials; interpretation of 2nd derivatives with contour diagrams. Notes on the gradients, Chain Rule, implicit 
Read sections 13.7 (Chain Rule and Implicit Differentiation), 13.8 (Directional Derivatives and the Gradient); the Supplement on the Chain Rule and Implicit Differentiation; and Supplementary Notes TA (Tangent Approximation), 13.10 (Critical Points of Functions of Two Variables and the Second Derivative Test); and Supplementary Notes LS (Least Squares Interpolation). Problem Set #5 (due Fri, Oct 12) 
L8  Mon, Oct 1  Directional derivatives. General Chain Rule. 

R8  Tues, Oct 2  Exam #1 Solutions 

L9  Wed, Oct 3  Quadratic approximation, extrema of functions, stationary points and the 2nd Derivative test; local maxima, local minima, and saddle points. Unconstrained optimization.  
R9  Thurs, Oct 4  Unconstrained optimization; Method of Least Squares and data fitting.  
L10  Wed, Oct 10  Constrained optimization and the Method of Lagrange Multipliers. Extrema in a bounded region; [Java tool for Lagrange Multipliers]  Read sections 13.5 (Multivariable Optimization Problems), 13.9 (Lagrange Multipliers and Constrained Optimization). Problem Set #6 (due Thurs, Oct 18) 
R10  Thurs, Oct 11  Economics applications and the meaning of the Lagrange Multiplier. Partial derivatives with internal constraints (nonindependent variables).  
L11  Mon, Oct 15  Optimization with multiple constraints. Last words on optimization (bounded regions, multiple constraints). Partial derivatives with internal constraints (using differentials).  Exam #2 will cover partial derivatives, linear approximation, differentials, gradient vector, normal vectors to curves and surfaces, directional derivative, the Chain Rule, implicit differentiation, stationary points, second derivative test, optimization, the Method of Lagrange Multipliers, and (possibly) derivatives involving nonindependent variables. 
R11  Tues, Oct 16  Questions and answers  
L12  Wed, Oct 17  Introduction to integration of a function f (x, y) over a region in R^{2}; applications to volume, mass, population, average value of a function; centroid (geometric center) of a region.  Read sections: Problem Set #7 (due Thurs, Nov 1) 
R12  Thurs, Oct 18 


L13  Mon, Oct 22  Applications of double integrals calculated by iterated single integrals (successive slicing) in Cartesian coordinates and polar coordinates. Weighted averages and center of mass; other applications and examples.  
R13  Tues, Oct 23  Exam #2 Solutions  
L14  Wed, Oct 24  Calculation of integrals over regions R^{2} via iterated single integrals (successive slicing) in Cartesian coordinates. The Fubini Theorem; interchanging the order of integration in an iterated double integral. Calculation of integrals over regions R^{2} using polar coordinates. 

R14  Thurs, Oct 25  Change of variables in double integrals. Introduction to integration of a function f (x, y, z) over a region in R^{3}  triple integrals to calculate mass, volume, average value, centroid, and more in R^{3} using Cartesian coordinates.  Read sections: Problem Set #8 (due Thurs, Nov 8) 
L15  Mon, Oct 29  Weighted averages and center of mass; other applications and examples. Cylindrical coordinates and spherical coordinates in triple integrals. Moment of inertia.  
R15  Tues, Oct 30  Problem set questions 

Here's a website that has a good javabased tool for showing vector fields and flows: http://math.rice.edu/~dfield/dfpp.html. The current version requires you to download a Java executable file to your own computer and to run it locally on your own machine. You can customize various options. You can also print the graphs. [How Java is called varies on computer and operating system, so we may have to provide some additional documentation.]  
L16  Wed, Oct 31  Surface area. General change of variables in multiple integrals, Jacobian determinants. Parameterized surfaces  planes, spheres, cylinders, graphs. “Little (displacement) vectors” and “little patches” determined by varying parameters independently; scalar and vector elements of surface area. 
Read sections: 15.2 (Line Integrals) 15.3 (Fundamental Theorem and Independence of Path) 15.4 (Green's Theorem) Problem Set #9 (due Tues, Nov 20)

R16  Thurs, Nov 1  
L17  Mon, Nov 5  More on vector fields in R^{2} and R^{3}, examples of vector fields from physics.


R17  Tues, Nov 6  
L18  Wed, Nov 7  Integration along a parameterized path. Introduction to vector fields in R^{2} and R^{3}, work done by a variable force along a parameterized path. 

R18  Thurs, Nov 8  
R19  Tues, Nov 13  Calculation of line integrals. Independence of path and conservative (gradient) vector fields. Fundamental Theorem of Line Integrals and potential functions. Algebraic definitions of the divergence and curl of a vector field. 
Supplement on conservative vector fields and the Fundamental Theorem of Line Integrals 
L19  Wed, Nov 14  Div, Grad, Curl; Green's Theorem; equivalents to a vector field being conservative. 

R20  Thurs, Nov 15  Exam #3  Topics include: Integration over two and threedimensional regions; double and triple integrals in Cartesian, cylindrical, and spherical coordinates; Fubini Theorem and interchanging order of integration; applications of integration – areas, volumes, mass, averaging, weighted averages, centroids and center of mass, moment of inertia, general change of variables for double and triple integrals, Jacobian determinants. Solutions  
L20  Mon, Nov 19  Examples of Green's Theorem; normal form of Green's Theorem. 
Read sections: 14.8 (Surface Area) Problem Set #10 (due Thurs, Nov 29) 
R21  Tues, Nov 20  Integration on surfaces; surface area, average value, flux of a vector field through a surface. 

L21  Wed, Nov 21  Examples of calculation of surface area and flux for graphs, cylinders, spheres; surface integrals for any parameterized surface. Supplement on surface integrals 

L22  Mon, Nov 26  The Divergence Theorem and examples. Geometric (coordinatefree) definition of the divergence of a vector field. 
Read sections: 15.7 (Stokes' Theorem) Problem Set #11 (due Fri, Dec 7) 
R22  Tues, Nov 27  
L23  Wed, Nov 28  Geometric (coordinatefree) definition of the divergence of a vector field; proof of the Divergence Theorem from the geometric definition of divergence.  
R23  Thurs, Nov 29 


L24  Mon, Dec 3  Stokes' Theorem and examples. Proof of Green's Theorem as a special case of Stokes' Theorem; proof that curl F = 0 implies F is conservative (given appropriate conditions). 

R24  Tues, Dec 4  Practice Questions for Exam #4 Solutions  
L25  Wed, Dec 5  Geometric (coordinatefree) definition of the curl of a vector field. Proof of Stokes' Theorem from the geometric definition of curl. Examples.  
R25  Thurs, Dec 6  Exam #4 Solutions 

L26  Mon, Dec 10  Some topological matters; Maxwell's Equations; differential forms and other perspectives. 
Practice Exam A (from mainstream 18.02) Solutions Practice Exam B (from mainstream 18.02) Solutions 
R26  Tues, Dec 11  Gradient, divergence, curl in other (orthogonal) coordinates RWOrthogonal Curvilinear Coordinates  Div, grad, curl, and Laplacian 

L27  Wed, Dec 12  Last details and questions  
Thurs, Dec 20  FINAL EXAM, 9:00am to noon in 16160 