Basic Trig Functions, v.3.6, now available!

trig-Graph-1-pdf1As I mentioned in my last blog, I will be offering three main lines of software on my website, Available now is the first program, Basic Trig Functions, version 3.6. As the title indicates, the main emphasis is on teaching trigonometry at the high school and college level. However, teachers of high school algebra, college algebra and pre-calculus will also find many features of the program to be very useful.

Basic Trig Functions has two modes of operation. The first is circle and trig mode. Use it to:

  • explore standard trigonometric angles, radian measure, arc length, sine, cosine, and tangent functions.
  • create a variety of trig-circle diagrams, which teachers can use to create handouts and test questions.
  • find and graph the powers of a complex number in either standard a + bi or polar format.
  • find and graph the roots of a complex number in either standard a + bi or polar format.
  • graph a wide variety of X-Y variable relations. When the user moves the mouse near a point of intersection, min/max point, or x-intercept, the X-Y coordinates of these points can be found with a click of the mouse.
  • graph polar functions. Users can see how polar points are graphed with the click of a mouse.
  • explore the Mandelbrot Set. Users can graph the orbit of a complex number and a mini-graph of the Julia Set of  a + bi with the click of a mouse.

The second mode of Basic Trig Functions allows teachers to easily demonstrate the geometry of the trig functions and special features of the tangent, cotangent, secant and cosecant functions, and investigate special geometric properties of these functions.

I invite you to visit our website to view screen shots that demonstrate the capabilities of the program. Users can copy all program output to the clipboard to be used in the creation of their own materials.

All the best,

George Johnson


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