find behavior is weird

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ahmed shaaban
ahmed shaaban 2015-2-24
评论： ahmed shaaban 2015-2-24
Hello all I am trying to use find to find some value, however, it sometimes works, other not.
gLat = -40:0.1:40;
find(gLat == 4.2)
I found
ans =
Empty matrix: 1-by-0
Any explanation for this. Thanks in advance

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Sean de Wolski
Sean de Wolski 2015-2-24
FAQ
  1 个评论
ahmed shaaban
ahmed shaaban 2015-2-24
thanks a lot it works, I modified it to be
find (abs(gLat-4.2) < 0.00001)

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