Schulte Table vs f(x) Calc

Find the next number — or letter. Beat your best time. Make focus a daily challenge. Dhyana turns classic Schulte training into quick, timed focus and reaction drills. Warm up before studying, take a purposeful break from work, or see how quickly you can find every target in order. ONE SIMPLE RULE, MORE WAYS TO TRAIN • Content: numbers or letters for a different visual search rhythm. • Rules: ascending, descending, or Shuffle, where the board rearranges after each correct tap. • Boards: classic grid, irregular, and wheel — same rules, different feel. • Difficulty: start with 3×3 and 4×4, take on the classic 5×5, then explore larger boards. SEE REAL PROGRESS After each round, results stay tied to the same conditions: time, mistakes, reaction pace, and a short trend of recent runs. First completion, new record, or a normal round — clear at a glance. BUILD YOUR ROUTINE Use your training calendar, streaks and daily reminders to keep practice part of your day. A few spare minutes are enough for another round. FOCUS ON THE CHALLENGE No account to create. No ads interrupting a round. Themes and card styles let you make the space your own. Optional Pro unlocks more training features, including AI practice insights and iCloud sync. Ready for your next personal best? Open Dhyana and start a round. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Full-featured Scientific Educational calculator with Natural Maths entry. Ideal for Maths and Science study with a built-in examples that will help you to learn how to use your calculator.   The perfect backup when you don't have your school calculator. Try the Junior mode for every-day use, with easy access to the most essential functions.