Maths online Gallery
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แย่มากดีมาก The Gallery consists of interactive multimedia learning units on various issues that shall facilitate understanding. Technically, most units are Java applets, some are graphical supplements or other programs (JavaScript). For practice and (self) control, visit the collection of interactive tests. A more systematic outline of the underlying mathematical background is included in the German version of maths online. (It is one of our future plans to translate this part into English language). The Gallery is under construction since March 1998, and new learning units are added continuously. We appreciate feedback about your experience with our material.

The learning units of the Gallery

You may call the learning units directly by clicking the respective icon for applets, for graphics or sequences of graphics, and for other programs

A click on a hyperlink leads you to a page collecting and briefly describing all learning units of a chapter. Occasionally, remarks on additional material and further information on the web are made.

 Definition of sets
 Cartesian coordinates Coordinate system Polar coordinates Oblique coordinates
 Recognize structures 1 (use abbreviations) Recognize structures 2 (formal properties of expressions) Recognize structures 3 (numerical properties of expressions)
 Equivalence transformations Quadratic equations 1 (Proof of solution formula) Quadratic equations 2 (Three solution methods)
 Introducing 3-vectors
 The slope of a straight line Spatial coordinates Straight lines in 3-space
 Function and graph Graphs of simple power functions Recognize functions 1 (simple polynomial functions) Recognize graphs 1 (functions of at most second order) Polynomial of third order (cubic polynomial) Function plotter
 Definition of the trig functions
 Triangle and Law of Sines
 Recognize functions 2 (functions containing negative powers) Recognize graphs 2 (functions containing negative powers) The graphs of sin, cos and tan Graphs of elementary trigonometric functions Graphs of some exponential and logarithm functions Recognize functions 3 (sine and cosine functions) Recognize graphs 3 (sine and cosine functions) Function plotter
 Planes in 3-space
 On the definition of the derivative Derivative puzzle 1 Derivative puzzle 2 Derivative puzzle 3 First and second derivative
 How to find a function's extremum
 Power series 1 (input by scroll bar) Power series 2 (numerical input) Function plotter
 Cycloids Logarithmic spirals
 Nowhere differentiable functions
 The Gauss distribution
 Intuitively understanding the integral
 Lorentz transformation
 Fourier series

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