Results area, expressions can be entered here

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  • use buttons like a calculator, or math expressions can be entered directly into the result area by clicking/tapping it and using a keyboard (the area has multiple lines for long expressions), then when ready press equals = button
  • order of operations: parentheses, exponents, multiplication or division, addition or subtraction, if same precedence (like * and /) then computed from left to right
  • find the longer 'golden ratio' length, enter: length/phi
  • determine the hypotenuse of a right triangle enter sqrt(first^2+second^2) add closing parenthesis
  • trigonometry, eg. cosine: cos(45 deg)
  • speed, eg. 90 km/h to m/s etc.
  • decimal calculations done in javascript sometimes produce results with many decimal places - these inaccuracies can be ignored, or results rounded manually