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math456
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math456
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For part a is it? |dw:1347737932933:dw|
math456
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@Hero
Hero
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I have no clue what \(signum\) is
Hero
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But graphing it doesn't seem difficult
math456
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In mathematics, the sign function or signum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number. In mathematical expressions the sign function is often represented as sgn.
Hero
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I think that maybe they mean this:
|dw:1347738110746:dw|
Hero
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|dw:1347738183297:dw|
math456
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|dw:1347738213571:dw|
math456
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yea got it..
Hero
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Yes, yours is more precise.
Hero
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Good job
math456
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thanks.
Hero
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What exactly are you stuyding? I've never seen sgn function before.
math456
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Its part of Calculus..
Hero
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Maybe I have seen it before but just don't remember too well. I don't think this is my first time seeing it. Just been a while and I don't think we went over sgn function in any detail at all.
Hero
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It's possible that it was maybe addressed in the calc book but our teacher never went over it.
math456
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yea I understand its okay, i will try to figure this one out
math456
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basically the main focus is on limits
Hero
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I think you should include a line in-between to represent x = 0
Hero
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|dw:1347738443330:dw|
math456
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hmmm to represent x=0
Hero
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Yeah, I just drew it for you
math456
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alright thank you, i will ask my prof to help me with this one!