Circle-circle intersection points

Question

How do I calculate the intersection points of two circles. I would expect there to be either two, one or no intersection points in all cases.

I have the x and y coo

Answer 1

Try this;

    def ri(cr1,cr2,cp1,cp2):
        int1=[]
        int2=[]
        ori=0
        if cp1[0]cp2[1]:
                ori+=2        
        elif cp1[0]>cp2[0] and cp1[1]!=cp2[1]:
            p1=cp2
            p2=cp1
            r1=cr2
            r2=cr1
            if p1[1]p2[1]:
                ori+=2
        elif cp1[0]==cp2[0]:
            ori+=4
            if cp1[1]>cp2[1]:
                p1=cp1
                p2=cp2
                r1=cr1
                r2=cr2
            elif cp1[1]cp2[0]:
                p1=cp2
                p2=cp1
                r1=cr2
                r2=cr1
            elif cp1[0]