SOLUTION: My question is really hard and not enrolled in a standard curriculum. Given a triangle on a complex plane which contains three vertizes {{{x}}},{{{y}}} and {{{z}}}. Find a number

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Question 593661: My question is really hard and not enrolled in a standard curriculum.
Given a triangle on a complex plane which contains three vertizes x,y and z. Find a number which is equal to incenter (a centre of inscribed circle) of triangle.
Well, I won't describe long computations but I was succesful to find the formula of the center of circumscribed circle, it is here: http://www.part.lt/img/56a97dbe7b0b5039eda438ab99b5f6cb97.jpg
Is there a source with similar expression of incenter?
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Refer to (2) on the following website:

http://mathworld.wolfram.com/Incenter.html

Since complex numbers function like Cartesian vertices, you can use that formula for points in the complex plane.