27 talking about this. Have a head-scratcher or just want to say hi? Online math solver with free step by step solutions to algebra, calculus, and other math problems. Why might radios not be effective in a post-apocalyptic world? I help math teachers increase engagement & learning by creating rigorous, fun activities! Get all the trends, slang, memes and whatever else directly to your inbox.. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Characters, in and of themselves, are not enough. Thanks for contributing an answer to Stack Overflow! How are we doing? This is explained in the docs: If the pressed key was a special function key, this will return '\000' or '\xe0'; the next call will return the keycode. I took courses in intro to analysis (using Abbott), abstract algebra (using the intro Hungerford book), number theory (using the Rosen text), and a few more (not topology, though). Under the covers, as you can see from the source, Python is just calling the MSVCRT function _getch, which is sort of like the POSIX function getch, but different in one key way: When reading a function key or an arrow key, each function must be called twice; the first call returns 0 or 0xE0, and the second call returns the actual key code. Free for students, parents and educators. Python: Unexpected result when byte 0xe0 is read. Connect and share knowledge within a single location that is structured and easy to search. for (double a=0;a