|
-
Sep 30th, 2009, 06:45 PM
#38
Re: Prime Numbers
 Originally Posted by storm5510
When you say "random access" do you actually mean sequential? You are writing them one following the previous?
I thought about other file modes. .Net is a little tricky on that. I have no good examples to follow. Besides, I'm already back up to 1.6 GB of data.
No, it's not a sequential file, even though it is being assembled one record at a time. When built, any record on the file can then be accessed by an immediate leap to a specifiic record--such as record number 100 million, and the prime number can be immediately revealed. The only thing I have to do in code is examine the value of the desired prime number. If over 2^31, then I switch to the big primes being stored as currency.
Your progess is excellent. The value of the most recent prime that I have collected is about 6.9 billion. Total file size has now reached 2 GB.
Last edited by Code Doc; Sep 30th, 2009 at 07:35 PM.
Doctor Ed
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|
Click Here to Expand Forum to Full Width
|
Reply With Quote