Mathematical Economics I

Resources forÌýMathematical Economics IÌý- for more information about the course, please seeÌýcourse outlines.

Assumed Knowledge

The following resources are helpful to revise or learn the assumed knowledge to pepare for this course.

    Revision seminars for topics in this course

    The MLC has given revision seminars for students in Mathematical Economics I and other courses over the years that you might find useful. Seminars are organised by topic below, but there are even more seminars in the "seminars in order of time" tab at the bottom.

    (Note that this course changed its name in 2020. It used to be called "Introduction to Mathematical Economics (Advanced)", but the content is the same. Also note that some methods shown in seminars for other courses may not match exactly the expectations your lecturer has for this course.)

      • Combinations and Permutations

        This revision seminar given to students in Maths for Information Technology in 2012. David discussed counting techniques such as combinations, permutations, allocations etc.

        This revision seminar given to students in Mathematical Economics I in 2019 had a sectionÌý(starts at 1h38m) on permutations and combinations:

      • Sequences and Series

        This revision seminar was given to students in Maths 1A in 2016 and discusses how to read and manipulate sum notation:

        This revision seminar given to Mathematical Economics I students in 2019 had a section on sequences and series (starts at 52m9s):

      • Mathematical Induction

        This revision seminar was given forÌýstudents ofÌýMaths for Information Technology in 2018 and had a section about mathematical induction (starts at 1h8m).

        This revision seminar was given forÌýstudents ofÌýMaths IM in 2015, and it covered mathematical induction.

        This revision seminar was given for students ofÌýMathematical Economics I in 2019 and ended with an example of a mathematical induction (starting atÌý1h51m26s).

      • Vectors and matrices

        Several lectures from the old MLC Maths Methods bridging course in 2019 will be useful for vectors and matrices in Math Econ I. They cover matrix operations and inverses, vectors and operations on them, and linear equations including row operations.

        • Ìý

        This revision seminar was given for students in Maths IM in 2014 and covered matrices and linear equations. In particular, the first part covered the sizes of matrices, matrix addition, multiplication and powers, and transposes.Ìý

        • Ìý

        This seminar was given for students in Maths IA in Sem 1 2017 and it beganÌýwith a section on linear dependence.

        This seminar was given for students in Maths IA in 2014 and covers all of the concepts to do with independence, span, subspaces and basis, beginning with what vectors and sets are. (David considers this one of his best revision seminars ever.)

      • Differentiation

        In Semester 1 2014, David gave a revision seminarÌýon differentiation to students in Intro Math Econ I.ÌýDavid discussed functions, differentiation, partial differentiation and lagrange multipliers.Ìý

        In Semester 1 2021, David gave a revision seminar to students in Intro Math Econ I about differentiation and using it to find maximums of both one-variable functions and several-variable functions.

        The following resources were created for the MLC bridging course MathsTrack, and might be helpful for understanding derivatives and maximisation of one-variable functions. (Some of the presentation might be quite different than in your course though.)

      • Limits and sign diagrams

        This revision seminar was given to students in Mathematical Economics I in 2015 and it concerns limits and sign diagrams.

        This revision seminar was given to students in Mathematical Economics I in 2019 and started with a section on sign diagrams.

      • Differentiation for functions of several variables

        This revision seminar was given to students of AQMF in 2013. David covered the idea of two-variable functions, their derivatives and an example of using Lagrange multipliers.

        This revision seminar was given to students of Maths IB and AQMFÌýin 2012. It covers domains, ranges, partial derivatives, maxima and minima in multivariable calculus.

      • Integration

        This revision seminar was given to students of the ³ÉÈË´óƬ course Mathematical Economics I in Semester 2 2021. David discussed the whole topic of integration, describing how he makes the decision of which technique to use and giving lots of examples of doing integrals.

        The following resources were created for the MLC bridging course MathsTrack, and might be helpful for understanding integration. (Some of the presentation might be quite different than in your course though.)

        This revision seminar was given to students in Mathematical Economics I in 2015. It coveredÌýthe basic formulas for integrals, substitution and integration by parts.

      • Revision seminars for Math Econ I in order of time

        Over the years, the MLC has given several revision seminars to students in this course where requests were taken from the students for what to talk about. They are listed here with the newest seminars at the top. Only a few have the document camera notes available.

        2024

        Nicholas discussed: Proof by induction (at the start), Continuous functions (at 35m35s), Integration (at 47m23s), Implicit differentiation (1h14m20s), Multivariable chain rule (1h23m10s).

        2023

        Nicholas discussed various problems from across the course including solving systems of equations, matrix algebra proofs, set operations, linear independence, basis and partial derivatives.

        2022

        David discussed integrals, both definite and indefinite, and the techniques of doing them.

        2021

        All techniques of integratiion.

        2020

        Integration, induction, counting and function inverses.

        2019

        Sign diagrams, curve sketching, sequences and series, and combinatorics.

        2015

        Basic formulas for integrals, substitution and integration by parts.

        Limits and sign diagrams.

        2014

        Functions, differentiation, partial differentiation and lagrange multipliers.Ìý