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Published on 2010-04-14T04:07:36Z
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2010/04/14
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double d = 2 / 130; // 0???
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Part 1 of this post can be read here. We are now about to see the different syntaxes for invoking a delegate and some c# syntactic sugar which allows you to code faster. We have the following console application. 1: public delegate double Operation(double x, double y); 2: 3: public…
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I have a set of points double n[] on the plane z = 0.
And I have another set of points double[] m on the plane ax + by + cz + d = 0.
Length of n is equal to length of m.
Also, euclidean distance between n[i] and n[j] is equal to euclidean distance between m[i] and m[j].
I want to rotate n[] in 3-D…
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Hi,
I am trying to do the following 33.33333333333333/100.0 to get 0.333333333333333
however when I run System.out.println(33.33333333333333/100.0); I get 0.33333333333333326 as the output, similarly when I run System.out.println(33.33333333333333/1000.0); I get 0.033333333333333326 as the output…
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I have come across a precision issue with double in .NET I thought this only applied to floats but now I see that double is a float.
double test = 278.97 - 90.46;
Debug.WriteLine(test) //188.51000000000005
//correct answer is 188.51
What is the correct way to handle this? Round? Lop off the unneeded…
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I have a wide variety of locations stored in my persistent object that contain latitudes and longitudes in double(43.7389, 7.42577) format. I need to be able to grab the user's latitude and longitude and select all items within, say 1 mile. Walking distance.
I have done this in PHP so I snagged my…
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I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:…
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Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to…
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The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions…
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I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot…
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Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test…
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