Kig (software)

KIG is free and open-source interactive geometry software, which is part of the KDE Education Project. It has some facilities for scripting in Python, as well as the creating macros from existing constructions.

KIG is free and open-source interactive geometry software, which is part of the KDE Education Project. It has some facilities for scripting in Python, as well as the creating macros from existing constructions. def square(arg1): return DoubleObject(arg1.value() ** 2) The variables are always called arg1 , arg2 etc. in the order they are clicked upon. Here there is only one variable arg1 and its numerical value is obtained with arg1.value() . If no one wants to implement the square of a complex number (represented by a point in the Argand diagram), the object which has to be selected at the creation of the script must necessarily be a point, and the script is def csquare(arg1): x = arg1.coordinate().x y = arg1.coordinate().y z = x * x - y * y y = 2 * x * y x = z return Point(Coordinate(x, y)) The abscissa of the point representing the square of the complex number is x^2-y^2 as can be seen by expanding (x+iy)^2=x^2-y^2+i(2xy) , Coordinate(x,y) creates a Python list made of the two coordinates of the new point. And Point creates the point which coordinates are precisely given by this list. But a Python object inside a figure can only create one object and for more complex figures one has to build the figure with a script: from random import * kigdocument.hideobjects() A = Point(0, 2) A.show() B = Point(-2, -1) B.show() C = Point(2, -1) C.show() M = Point(.1, .1) for i in range(1, 1000): d = randrange(3) if d == 0: s = Segment(A, M) M = s.midpoint() if d == 1: s = Segment(B, M) M = s.midpoint() if d == 2: s = Segment(C, M) M = s.midpoint() M.show()

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