MaPhET

Main functions:
• Calculator
- Basic arithmetic operations, powers, percentages, sine, cosine, tangent, root, logarithm, factorial
- Output with calculation path and bracket resolution
• Conversion of units of measure
- Length, area, volume, temperature, weight, speed, pressure, energy, acceleration, force, power, time, data storage, transfer rate
• Calculation of date differences and adding and subtracting with dates
• Random Numbers
• Random Letter
• Roll the dice
• Greek alphabet
• Prefixes for units of measure
• Number sequences and prime numbers
• Calculation of triangles with a calculation path
• Mathematical basics
• Equations and functions
• Linear functions and quadratic functions
• Draw functions
• Geometry basics
• Geometric solids and figures
• Physics formulas
• Physical quantities and units with value tables
• Physical constants
• Chemistry formulas and periodic table of elements
• Extensive search function