Construction in GCLC language

dim 120 120

point A 80 95
point M_{a} 65 40
point M_{c} 50 67.5

color 220 0 0
fontsize 11

cmark_t A
cmark_b M_{a}
cmark_lt M_{c}
color 0 0 0
fontsize 10


% Constructing a point B such that AB/AM_{c}=2
towards B A M_{c} 2 
cmark_b B
color 200 200 200
drawsegment A B 
color 0 0 0



% Constructing a point C such that M_{a}C/M_{a}B=-1
towards C M_{a} B -1 
cmark_b C
color 200 200 200
drawsegment B C 
color 0 0 0



drawsegment A B
drawsegment A C
drawsegment B C

% Non-degenerate conditions: 
% Determination conditions: