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![[Post New]](/templates/default/images/icon_minipost_new.gif) 26 Mar 2008 08:34:07 IST
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1.what is a signum function?
2.what are break intervals?
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signum just means sign functions n break point or break intervals means wavy curve method wich we foll while findin range etc
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don't walk as if u rule d world
walk as if u dont care who rules d world
-this is knw as attitude
B who u r and say wat u feel ......
coz those who mind don't matter ........
and those who matter dont mind ......... :)
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26 Mar 2008 08:37:31 IST
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signum functions have breakpoints at -1, 0 and 1...
elsewhere they are continuous
rate me
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all the best ... |
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26 Mar 2008 08:38:26 IST
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SIGNUM FUN = SGN INTEVAL : IF NEGATIVE THEN ITZ VALUE IS -1 IF O THEN O N IF +VE THEN 1 ONLY THREE VALUES IT HOLDS PLZ RATE IF USEFUL CHEERS!!!!
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26 Mar 2008 08:50:27 IST
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ex |x| / x
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26 Mar 2008 08:51:30 IST
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EXACTLY!!!!!
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26 Mar 2008 16:12:20 IST
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The function signum(x) is -1 when x is negative, 0 when x is 0, and 1
when x is positive.
One practical application is that its integral is |x|. It's also very
handy for piecing together any functions with discontinuities.
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28 Mar 2008 13:49:24 IST
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IxI/x
-1 ifx<0
not defined if x=0
1 if x>0
domain=real-{0}
range={1,-1}
many-one
onto
continuos on R-{0}
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28 Mar 2008 15:13:39 IST
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f(x) = { 1 if x>0 0 if x=0 -1 if x<0 } graph: at 0 der is a dot,sorry forgot to put it
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Varsha
be cool,
tomorrow is what we make it today,
so if u can dream it , u can make it .
life is an ice cream ,eat it before it melts away!!!!!!!!!
    
 
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