dist(1,2)
call(()->I)
call1(sqrtint,2)
call1(x->x^2+1,2)
call2(kronecker,5,7)
call3((x,y,z)->[x*y,y*z,z*x],[1,2,3])
gen([isprime,issquare,issquarefree],3)
baz(2)
bar()
booz()
foo()
boor()
toto1()
buzz()
