warning: Ignored call to f7/36 in equation f6/36 
warning: Ignored call to f7/36 in equation f11/36 
warning: Ignored call to f7/36 in equation f13/36 
warning: Ignored call to f7/36 in equation f13/36 
warning: Ignored call to f7/36 in equation f14/36 
warning: Ignored call to f7/36 in equation f15/36