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can you explain more on validity and reliability of statistics. the truthfulness of statistics —Preceding unsigned comment added by 81.199.149.148 ( talk) 09:58, 8 June 2009 (UTC)
This seems like a really plausible result since division is nothing more than repeated subtraction. When I divide 10 by 1 then I in essence only count the number of times I can subtract 1 from the result of the previous subtraction, i.e. 10-1=9, 9-1=8... etc. until I am left with a value of zero or a remainder between zero and 1.
Therefore when I subtract zero from 10 I get 10 but the number of times I can do this subtraction and do it again and again and again is infinite. -- Taxa ( talk) 20:58, 8 June 2009 (UTC)
For some purposes it makes sense to add just one "infinity" to both ends of the real line and say 10/0 = infinity. This serves the purposes of trigonometry, projective geometry, and complex analysis (where the whole plane has just one extra "point at infinity" tacked onto it. Michael Hardy ( talk) 04:53, 9 June 2009 (UTC)
Suppose I have a number of discrete points with values attached to them. I want to now draw contour lines (isopleths) around these points. As a real example, plotting isobars on data from pressure data from weather stations.
Naturally, the plots such as these are performed by meteorological organizations are automated somehow.
What are the standard algorithms used to plot these points? Any online references I can look at? —Preceding unsigned comment added by 210.11.75.201 ( talk) 23:24, 8 June 2009 (UTC)
Mathematics desk | ||
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< June 7 | << May | June | Jul >> | June 9 > |
Welcome to the Wikipedia Mathematics Reference Desk Archives |
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The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
can you explain more on validity and reliability of statistics. the truthfulness of statistics —Preceding unsigned comment added by 81.199.149.148 ( talk) 09:58, 8 June 2009 (UTC)
This seems like a really plausible result since division is nothing more than repeated subtraction. When I divide 10 by 1 then I in essence only count the number of times I can subtract 1 from the result of the previous subtraction, i.e. 10-1=9, 9-1=8... etc. until I am left with a value of zero or a remainder between zero and 1.
Therefore when I subtract zero from 10 I get 10 but the number of times I can do this subtraction and do it again and again and again is infinite. -- Taxa ( talk) 20:58, 8 June 2009 (UTC)
For some purposes it makes sense to add just one "infinity" to both ends of the real line and say 10/0 = infinity. This serves the purposes of trigonometry, projective geometry, and complex analysis (where the whole plane has just one extra "point at infinity" tacked onto it. Michael Hardy ( talk) 04:53, 9 June 2009 (UTC)
Suppose I have a number of discrete points with values attached to them. I want to now draw contour lines (isopleths) around these points. As a real example, plotting isobars on data from pressure data from weather stations.
Naturally, the plots such as these are performed by meteorological organizations are automated somehow.
What are the standard algorithms used to plot these points? Any online references I can look at? —Preceding unsigned comment added by 210.11.75.201 ( talk) 23:24, 8 June 2009 (UTC)