3 ms·

Here's one that gets me: what's the sign of infinity? What do I mean? 1/d retains the sign of d across all finite and infinitesimal values. 1/ε = +∞, 1/-ε = -

• zeven7 3y ago
  1 / 0 = ±∞ Or if you must, you do that thing where you pick the positive option à la √
  • yarg 3y ago
    ± is useful for ambiguities, such as the the result of the antifunction of a symmetrical function. But there's no ambiguity here - those signs that you're suggesting popped out of nowhere.
• drexlspivey 3y ago
  1/0 is not defined. There is only lim(1/ε) when ε->0+ = +∞ and lim(1/ε) when ε->0- = -∞