Adapted and original with instant word and phrase translation. Tap to translate unfamiliar terms. Access offline and adjust reading difficulty levels. Track progress and revisit previously content.
Graph functions and equations, plot polar and parametric curves, and find special points like roots and maxima. Perform regression with -fit lines. Search for learning activities. Save and share results with others.
Guess portraits of historical figures and collect stars in each level. Answer questions about from . Track progress through two difficulty levels with increasing challenges. View detailed information about each person.
