Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ ¹ ² ³ °
 

You are not logged in. #2 20130824 04:32:29
Re: Little questionxx is identically equal to 0 because it is 0 for any value of x. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #3 20130824 04:50:18
Re: Little questionhi AlAllo and also eg. If you google the two word phrase you'll get more examples. Meanwhile, here's a challenge for members: Find an example where you cannot leave out the word 'identically' without changing the meaning. Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #5 20130824 05:07:56
Re: Little questionHi Bob The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #7 20130824 06:48:30
Re: Little questionIn math such an example, I think, doesn't exist. But, either way, the question is a bit ambiguous. The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #8 20130824 16:55:29
Re: Little questionI suppose what I'm really saying is the word 'identically' is redundant in the sentence. So then I wonder, is it always redundant. So far, I think, yes. So I'm curious about whether a case exists where it isn't. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei 