area of triangle by ksk

while 1=1do
Scanf.scanf"%f %f %f "(fun a b c->Printf.printf"%.f
"(sin(acos((a*.a+.b*.b-.c*.c)/.2./.a/.b))/.2.*.a*.b))done

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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