Some course policies
What the course is about:
Classifying very broadly, this course is about three main topics-
Linear Algebra (Chapters 7 & 8), Vector Calculus (Chapter 9) and
Differential Equations (Chapters 2, 3, 4, 5 & 10).
The first topic deals with vector spaces and (linear) maps between
them, matrices, properties of matrices. We will also see some
applications of matrices e.g. solving systems of equations. Later, in
the third part of the course, we will use whatever Linear Algebra we
learnt to solve systems of differential equations.
Then, we are going to study some vector calculus, and Stokes' Theorem
and its applications. (By Stokes' Theorem, I mean not just Stokes' but
also Green's and Divergence Theorems.)
Finally, we look at differential equations. After quickly brushing over
what we saw in Math 114, we will try to solve other types of
differential equations e.g. Cauchy-Euler, Bernoulli, etc. and then see
an effective method to solve higher degree differential equations and
systems of linear differential equations. We will see how to solve
differential equations by the method of power series. We will also learn
how to use Laplace transforms to solve differential equations.
Prerequisites:
I won't be assuming anything for the Linear Algebra part of the course
as I will start from scratch. However, Calculus- Differentiation and
Integration (esp. Substitution and Integration by parts) and basic
Trigonometry should be on your fingertips.
Among other things, I will be assuming a reasonably sound knowledge of
Math 114. More specifically, functions of several variables and vector
calculus and differential equations are two topics with which you
should have some familiarity.
Regarding Maple, I do not require the use of Maple in the course.
However, I think Maple is a powerful software and
especially, when we deal with functions of several variables, it is not
so easy to visualise the graphs and Maple often helps us visualise by
drawing three-dimensional graphs. Using Maple is also a good way to
verify ones answers. (For best results, you should work out
the problem on your own and then use Maple to verify your answer.)
Goals of the course:
Though, we will be trying to complete the syllabus mentioned, more
importance will be paid to understanding the stuff well than just
trying to "cover" the syllabus. What we will be learning (linear
algebra, calculus of functions of
several variables, differential equations)
are foundational topics required and used in all spheres of mathematics
and other sciences (including physics, engineering), and so, if
the basics are not clear, one might face problems. So, though the emphasis
might be on solving problems, if you want to be at the top of the
class, you should understand things clearly too.
Homework/ Quizzes:
Homeworks will be assigned
once/ twice a week mainly based on the core problems for the topics
completed that week. Homework need not be handed in.
However, this does not mean homework is not
to be done. The ability to do homework regularly will be a good
indicator of your performance in class. Also, I will be taking short
(~10-minute) quizzes in class (with or without prior notice) and these
quizzes will be closely based on the homework problems. (I might choose
a problem
verbatim from the
homework.) So, there is more than one incentive in doing homework. The
homeworks
are mainly intended to ensure that one does not
fall behind what is being done in class. The homeworks
will be posted on the homework
page,
and the quiz/ exam scores will be posted on
Blackboard. (Please
make sure that you cross-check your scores on Blackboard, and in case
of any discrepancy, please inform me as early as possible.) Some
of the core problems may be assigned as homework while others may
not. It is your responsibility to make sure that you have solved all of
the core problems as well as all the questions in the sample
examinations as
preparation for the exams.
You are strongly encouraged to discuss the solutions to the
homeworks with ones classmates or anybody else (including me).
Regarding quizzes, I plan to drop the
lowest quiz score. Every other exam/ quiz score will be counted towards
your final score. Also, I'll allow each student a maximum of one make-up quiz for the
entire semester. However, to make-up a quiz, I must have received PRIOR notice that you will be
missing the quiz. (The only exceptions might be illness or if the quiz
was a "surprise" one i.e. held without prior notice.) If I'm not
informed in advance, there is no going back on the quiz except for the
above two instances. (Regarding make-up quizzes, I do not need a reason
as to why you want to take a make-up, all that is required of you is to
inform me in advance.)
Exams:
There will be a total of four
exams- three (~1-hour) exams in the middle of
the semester and a final exam. Other than that, there will be quizzes
(as mentioned above). The final exam will be held on the final
day of classes. I will announce the specific dates for the other
examinations in proper time. The syllabus for the final exam shall be
whatever is taught till the last day of class.
Schedule:
Exam 1: 30th May (tentative)
Exam 2: 12th June (tentative)
Exam 3: 21st June (tentative)
Final Exam: 28th June
Weightage:
Final Exam
: 40%
Other Exams (15% * 3 =) : 45%
Quizzes
: 15%
(Extra credit may also be awarded if a
consistently good performance is noted.)
Grading:
Please note that I shall
not
take attendance into consideration while awarding you grades. If you
think you know the subject material and you feel attending classes are
not going to help you, you may feel free not to attend classes. But
please make sure you turn up for quizzes and exams. I
will not be offended if you do not show up for classes. But please make
sure you keep in touch with the subject material, because otherwise,
you might be in trouble during the exams.
Also, typically the course should have 33% A's, 33% B's and 33% C's.
However, if I notice a good performance, I might relax the percentage
of A's and B's. Hypothetically, the entire class could get A's but for
that everybody has to peform really well.
What is expected of you:
Though I will be discussing all the relevant topics in class, and
elaborately
treat the more important and subtle ones, it will not be possible to
speak about everything in entire detail in this limited time. So, you
are expected to do a
lot of reading at home after class hours. Also, as the class meets for
more than eight hours a week, not being up-to-date with what is being
done can turn out to be expensive. I'll be mentioning in class
what you should read before the next day's class. You should make sure
that you are able to solve each and every problem that is assigned on
the homework, and also the core problems assigned for the course. At
the end of this course, you should make sure that you are not just able
to compute, but also have an understanding of what was done in class.
You should also be able to write reasonably decent proofs at the end
of this course.
Resources:
Other than the resources
already mentioned, you may feel free to
come and ask me questions during office hours and during or after class.
About me:
I have just completed my second year of the graduate program in
mathematics here. I've had "some" experience in teaching/ "TA'ing". I
taught Math 115 last summer and was a TA for Math 114 and Math 240 in
Fall 2006 and Spring 2007 respectively and have enjoyed all my
experiences so far, and am confident I'll enjoy it this summer too. I
hope to provide a friendly and informal classroom atmosphere conducive
to learning as well as enjoying oneself. I am sure I will be making
mistakes (if one can comment from one's past experience!) and I
look forward to being interrupted during class. PLEASE do correct me
whenever you
think I am wrong (however trivial the slip may be, because
someone else
might not have noticed it), that way we all get to learn. You may or
may not
be
correct all the time but I am sure our understanding will improve at
the end of it. If you feel the pace of the class is too
fast/ slow, please do not hesitate to bring it to my notice. Also, I'm
not a native speaker of english and so you
might have trouble understanding me. Please feel free to stop me and
make me repeat something which I have not been clear about or something
which you don't understand. I look
forward to a very rewarding semester for all of us. Best of Luck!