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jweather/gist:a9e615014768c7b645f9f4291e468c40

Created April 7, 2016 15:50
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gistfile1.txt
xA = ((Y[1]-Y[0])*(X[0]-X[2]) + (Y[2]-Y[0])*(X[1]-X[0]))/((X[0]-X[2])*(X[1]*X[1]-X[0]*X[0]) + (X[1]-X[0])*(X[2]*X[2]-X[0]*X[0]));
xB = ((Y[1] - Y[0]) - xA*(X[1]*X[1] - X[0]*X[0])) / (X[1]-X[0]);
xC = Y[0] - xA*X[0]*X[0] - xB*X[0];
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