cheetaman Posted March 23, 2018 Share Posted March 23, 2018 What is the Infinitesimal sign? Link to comment Share on other sites More sharing options...
swansont Posted March 23, 2018 Share Posted March 23, 2018 epsilon Link to comment Share on other sites More sharing options...
Trurl Posted March 24, 2018 Share Posted March 24, 2018 On 3/23/2018 at 7:27 AM, swansont said: epsilon I was wondering this the other day. How many infinity symbols are there? There is the car Infinity whose symbol I'm not sure what infinity it is. I wonder if infinity has the most symbols representing it than any other math symbol. For example this is infinity: Link to comment Share on other sites More sharing options...
studiot Posted March 24, 2018 Share Posted March 24, 2018 (edited) On 23/03/2018 at 11:10 AM, cheetaman said: What is the Infinitesimal sign? Both the small Greek letters epsilon *( ε ) and delta ( δ ) are used. Sometimes just on their own, when it is necessary to distinguish, as in the so called epsilon - delta proof in mathematical analysis. Sometimes in conjunction with a variable symbol to denote an infinitesimal increment in that variable as in δy = f'(x) δx In this case the distinction is made by the different variable letters and the same infinitesimal symbol is used for both. Edited March 24, 2018 by studiot Link to comment Share on other sites More sharing options...
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