Grade Book HD - for the iPad

This application helps teachers to keep track of the grades, marks and credits of their different classes in school and university. It always shows the up to date average mark or the sum of the credits for each student and the number of marks. As well you can set a goal for each class and see which student already meets it and who doesn't.

Average Calculator HD - for the iPad

Calculates the arithmetic mean, the geometric mean and the harmonic mean as well as the standard derivation and the confidence interval of a set of numbers. Different number sets can be saved. The calculator results can be emailed.

Quick Chart XL - for the iPad

This application lets you quickly chart a data series just by entering the numbers. You can choose to show the average value and flip between different chart types by a simple click. Manages multiple data sets and charts. The data values can be emailed.

3D Plotter XL - for the iPad

Plot graphs of 2-dimensional functions in 3D. Enter your formula and the range you want to plot.

New for the iPad: Plotter XL

Plot graphs of functions. Enter your formula and the range you want to plot. By separating the formulas with semicolons you can draw more than one function at once.

Welcome iPad

Right from the start you can get a few of my iPhone applications in a shiny new iPad version:

Thesaurus XL - Find synonyms for every word

Compass XL - Find out where to go

Checklists XL - Create and manage all sorts of checklists

Source Viewer XL - Check the HTML, CSS and Javascript of websites

Ruler XL - Measure the scale of small things

All Countries XL - Map all countries of the world

Country Quiz XL - Can you spot all foreign countries?

States XL - Maps all states in the USA

State Quiz XL - Can you spot all states in the USA?

Capital Quiz XL - Test your knowledge and name all U.S. state capitals

Please stay tuned for the rest...