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SeLo 2020t, both sections Class photo day
SeLo 2020g DfyQ 2020g
Algebra.1 2019t SeLo 2019t
NT&Crypto 2019g DfyQ 2019g
SeLo 2018t DfyQ 2018t


Don't just stand there, -Read Something!

Some of my students have rated me Actually...I don't wear a tie. and the comments, ahem, vary. (At least I rank better than Attila the Hun… -his teaching was terrible   -no wait, that was Ivan …) [Wikipedia discusses this phenomenon.]    Legitimate complaints?

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Prof. King
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Seminars & Events
Math seminars, open to the public
Little Hall on map, photo.
Floors 1,2 (txt).

Campus Map & Photos.
Course Descriptions
UFMath-course syllabi.
UF Dates/Deadlines &
Adjustable UF &
Jewish: Tishrei 5770.
Gregorian: Sept.Oct.
GVL radar | GVL weather | UF weather page | CLAS newsletter | flu

First-day/ Add:Drop/ (Withdraw) /Last-day:    Thanksgiving/SpringBreak   Holidays: LD = LaborDay. Hc = Homecoming. Vet= VeteransDay
Spring 2020: Mon06Jan/ Jan6-10/ (Fri 10Apr) /Wed22Apr.     SB: Sat.Feb29-Mar7. MLK: Jan.20.
Aut2020: Mon31Aug/ Aug31-Sept04/ (Mon23Nov) /Wed09Dec  Tg: Wed25-28Nov. LD:07Sep. Hc:03Oct. Vet:Wed.11Nov.

  For UF students there is free tutoring at the UF Teaching Center (see schedule).

In all of my courses, attendance is absolutely required (excepting illness and religious holidays).

Actually...I don't wear a tie. Past, Present and Future courses.

Current courses: Autumn 2020

A Venn diagram Sets and Logic, 2020Autumn.
Two sections, taught online due to COVID-19.
Guides students on how to read/produce proofs, learning some of the language of modern Mathematics. My section will focus on problem-solving; both Putnam and USAMO problems will be used as examples. Both Induction and the Pigeon-hole Principle (a counting argument) will be introduced early in the semester.

Recent courses: Spring 2020
A Venn diagram Sets and Logic, 2020g.

A pendulum, a spring, a diffyQ! Elem. Differential Eqns.

Linear, separable, autonomous DEs, intro to Differential Operators, for the bright, motivated, hard-working student. Time permitting, we'll introduce the Matrix Exponential as a way of solving interconnected linear DEs.

Prospective DiffyQ students should seriously review High-School mathematics (eqns of lines, parabolas; quadratic formula; sum of a geometric series) before or during Add/Drop.

Past courses: Autumn 2019

Groups, rings, fields. Abstract Algebra 1 . An introduction to Groups, primarily, with some discussion of Rings and Fields. This is for the motivated hard-working ambitious student who likes structures, games, puzzles ...and Thinking in general.

A Venn diagram Sets and Logic, 2019t.

Earlier courses: Spring 2019

We may use more advanced computing devices... Number Theory & Mathematical Cryptography .

This is a special topics course and is only offered once every 3 years or so. Also... NT&Math-Crypto counts as an Upper-division math-elective.

This course is an introduction to coding theory in general, and Mathematical Cryptography in particular. It does not assume a previous Number Theory course, only asking that the student do a bit of reading before the semester begins. (The webpage has a few suggestions.)

A pendulum, a spring, a diffyQ! Elem. Differential Eqns., 2019g.

Courses from the Hoary Past All courses, with Notes, Exams and Links.

Handouts Usually Useful Pamphlets


Geometry stuff

Calculus-ish stuff

Number theory stuff

Combinatorical stuff

Algebrish stuff


Should you wish a letter of recommendation (LOR) from me, I have certain LOR requirements. Although I prefer that you provide an LOR waiver form (obtained from University/firm/granting-agency that you are applying to), here is a generic LOR waiver (pdf).

Grades Grades

For course-grades I use
    A+  A  A-  . . . D+  D  D-  E+  E.
The Registrar rounds an A+ to an A, and E+ to an E, but I kept track of the higher grade when I write letters of recommendation for students. [NOTE: Although a D- is passing, certain University requirements need a minimum grade of C; students should check with their College or Department.]

Students should read my teaching/quiz policy.

Timely Quotes

One of the greatest labour-saving inventions of today is tomorrow.
-Vincent T. Foss
Hard work has a future payoff. Laziness pays off NOW.
Warning: Dates in Calendar are closer than they appear.

Web Resources on The Web

LaTeX Typesetting mathematics: TeX/LaTeX/ps/dvi

Tips on writing proofs


The faculty union.

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