Maxima Tutorial 3 – Trigonometric Functions and Calculus

In this tutorial, we are going to discuss some of the most elementary commands used in Maxima in Trigonometry and Calculus. Note that in maxima, most constants are written with the percent sign before it. For instance, the most common constants are π, e and i are written as %pi, %e and %i.

Maxima can perform the following trigonometric and calculus operations:

  • Get the value of trigonometric functions
  1. sin(%pi/2);
  2. cos(%pi/4);
  3. tan(%pi/6);
  4. [sin(%pi/3),cos(%pi/3)];

As you can see, in 4, we can get the values simultaneously by separating the functions with comma and enclosing them with bracket.

  • Get the Limits of Functions
  1. computes the limit of 2x3 + 5x2– 2x as x approaches -1: limit(2*x^3 + 5*x^2 – 2*x – 1, x, -1);
  2. computes the limit of (x4 + 4x2)/(2x4 – 2) as x approaches negative infinity: limit((x^4 + 4*x^2)/(2*x^4 – 2), x, minf);
  3. computes the limit of (x4 + 4x2)/(2x4 – 2) as x approaches infinity: limit((x^4 + 4*x^2)/(2*x^4 – 2), x, inf);
  • Get the Derivatives and Integrals of Functions
  1. Get the derivative of derivative of (x4 + 2x3 + 5x2): diff(x^4 + 2*x^3 + 5*x^2, x);
  2. Perform indefinite integration: integrate(x^3 + 4*x^2 – 2*x, x);
  3. Perform definite integration: integrate(x^3 – 2*x^2 + x, x, -1, 2)

Applets For Visualizing Isometric and Three Dimensional Views

I came across with two applets I found very useful. They can be used for practicing visualizing the relationship between isometric and three-dimensional views. The first applet is called “Rotating houses”.  The applet requires the user to rotate an object until the desired isometric view is copied.

Note: Click the pictures below to load the applets.

The second applet is called “Building houses with side views. Given the isometric views (front, top, side), the applet lets you construct the actual object in three dimensions.

The highest point is given if you can construct the “houses” with the least number of blocks.

The Amazing Mathematics Illuminated

Mathematics Illuminated is an amazing multimedia resource created by Annenberg Media. It contains text articles, videos, and java applets that discusses mathematics ranging from the most ancient to the most modern. The title of 13 chapters are the following.

  1. The Primes
  2. Combinatorics Counts
  3. How Big is Infinity
  4. Topology’s Twists and Turns
  5. Other Dimensions
  6. The Beauty of Symmetry
  7. Making Sense of Randomness
  8. Geometries Beyond Euclid
  9. Game Theory
  10. Harmonious Math
  11. Connecting with Networks
  12. In Sync
  13. The Concepts of Chaos

It also contains textbooks, facilitator’s guides, participant’s guides, interactive applets and many other teaching tools that can be used in teaching and learning mathematics.

If you are a mathematics teacher or enthusiast, Mathematics Illuminated is really worth visiting.

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