My question is - explain signum & into function.
Request if you could provide me the video's for the above mentioned subject as it not uploaded on the website.
Thanks & regards
Asked by yadav.ml | 23rd Apr, 2014, 10:32: PM
signum is a piecewise function
A function f:A→B is an into function, if there exists element in co-domain set, which has no pre-image in the domain set “A”.
Answered by | 28th Apr, 2014, 02:38: PM
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