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Free fall with air resistance was added also the classic free fall calculator was updated.
Game of life
experiment the options of the game of life, invented by John Conway

Colors testing and blending


Logical gates

Boolean algebra and logic Gates

Area of functions using integrals.

Calculate distances between cities
Physics solved examples
Math solved examples

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Parabola ...
Hyperbola ...
Circle defined by 3 points ...
Line equation ...
Ellipse ...
Units converter ...
Complex matrices ...
Intersection of sphere and line ...
Tangents lines between 2 circles ...
Two circles tangency ...
Acceleration examples ...
Free fall examples ...
Pulley and friction examples ...
System of equations ...
Vectors ...
Two Ellipses intersection ...
Matrix calculus ...
Two spheres intersection ...
Roman number converter ...
Three tangent circles ...
Circle defined by 3 points ...
Three circles intersection ...
Irregular Quadrilateral ...
Quadratic .. equations ...
Fractions and common factors...