Function math_abs

Source/Misc/lua/src/lua.c:12531–12534

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

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