GNU S statistical computing and graphics.
Learn any subject using text flash cards.
Do you want to check your level of knowledge for a specific medical exam?
Enjoy game of life in 3D format.
Perform various basic shapes calculations.
Pass your driving theory test in California.
Learn all the major and minor scales, key signatures, harmony even Perfect Pitch.
Perform various weather calculations.
study tool for language, chemistry or other learning
Perform various scientific calculation.
ergonomically designed typing tutor
