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Monday, November 17, 2008 11:24 PM

Entity Framework, LINQ to SQL and Oracle

Amid the debate about which is better and have more future (two things that not necessarily go together) between LINQ to SQL and Entity Framework, one thing they have in common is the fact that Oracle is in “no comment” mode about both of them. It’s like...
Posted by Edgar Sánchez | 2 comment(s)
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Friday, May 02, 2008 12:09 AM

Which is the ten thousand first prime?

Prime numbers have a good deal of practical applications (for example in cryptography) but let's face it, even if they would have none, they would still be the favorite toy of mathematicians . In Problem 7 of Project Euler , we are asked to find the 10001st...
Posted by Edgar Sánchez | 4 comment(s)
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Saturday, April 19, 2008 1:40 AM

Finding the largest prime factor of a number

This is another classic problem at Project Euler that can be solved with the old trick of top down programming, like so: PrimeFactors(number).DefaultIfEmpty(number).Max(); It's a nice solution, supposing PrimeFactors() actually returns all prime factors...
Posted by Edgar Sánchez | 2 comment(s)
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Thursday, April 17, 2008 4:10 AM

Project Euler and infinite sequences in C#

The second problem at Project Euler proposes: Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even...
Posted by Edgar Sánchez | with no comments
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Tuesday, November 27, 2007 12:25 AM

A better way of getting the average salary

Related to my post yesterday in which I tried to show an appealing business sample in F#, David Taylor commented that this: can't possibly be more appealing than this: var averageSalary = companyRoll.Average(e=>e.salary); David is using LINQ of course...
Posted by Edgar Sánchez | 1 comment(s)
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