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Mathematical surface

The user can defines surfaces with equation of type z = f(x, y).
The surface definition is done is the window shown above. The possible functions in the equation are :

  • '+' : add
  • '-' : substract
  • '*' : multiply
  • '/' : divide
  • '^' : power
  • 'sqrt' : square root
  • 'sin' : sinus, in degree
  • 'cos' : cosinus
  • 'tan' : tangent
  • 'asin' : arcsinus
  • 'acos' : arccosinus
  • 'atan' : arctangent
  • 'log' : logarithm, base 10
  • 'ln' : logarithm, base e
  • 'ceil' : round by
  • 'floor' : round by default
  • 'round' : round to nearest integer
  • 'abs' : absolute value
  • 'mod' : modulo
  • '=' : equality
  • '!=' : difference
  • '<' : lower
  • '>' : greater
  • '>=' : lower or equal
  • '<=' : greater or equal
  • '|' : logical or
  • '&' : logical and
  • '!' : logical not
  • constant : 'pi', 'e'.
  • The result of the equation z = 1 / (x^2 + y^2 + 0.01) is :


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