Cross Digits Lite offers a number crossword experience where each word represents a number. Users fill the board using logic and deduction, referencing a word list for horizontal and vertical numbers.
For practicing number combinations 0-9. Students complete drills in order then random order after mastery. Review mode includes 30 problems with recent and previous digits. Only correct answers are shown. Tracks progress and provides feedback.
Solves equations for y, x, and a in y = log_a(x) with graphing. Explains computation of log_e(x) using Taylor series and log_10(x) via digit-by-digit method. Provides proof of log_e as the integral of x inverse.
