Function math_abs

third-party/lua-5.2.4/src/lmathlib.c:26–29

static int math_abs (lua_State *L) {
  lua_pushnumber(L, l_mathop(fabs)(luaL_checknumber(L, 1)));
  return 1;
}

static int math_sin (lua_State *L) {
  lua_pushnumber(L, l_mathop(sin)(luaL_checknumber(L, 1)));