Programming Praxis | A collection of etudes, updated weekly, for the e...
Programming Praxis. A collection of etudes, updated weekly, for the education and enjoyment of the savvy programmer.
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Best pages on Programmingpraxis.com
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A collection of etudes, updated weekly, for the education and enjoyment of the savvy programmer
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Keypad Errors | Programming Praxis
[ Programming Praxis passed 2 million lifetime hits over the weekend. Gracious thanks to all my readers who have taken it so far. I can still remember being ecstatic when I got to a thousand hits. Tha...
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Packed Ascii | Programming Praxis
Packed ascii is a method for compressing a useful subset of ascii characters in 6 bits, used in HART-enabled devices. The characters that may be transmitted are the space character, the 26 upper-case ...
Programmingpraxis.com news digest
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2 years
Cutting Fields From A CSV File
Over at Stack Overflow, I answered a question about cutting fields from a CSV file. Paraphrasing:
A file in CSV format has a header row containing field names followed by record rows containing actual data. The user wants to cut fields from the CSV file to create a new CSV file containing only the specified fields, specifying the fields by name instead... -
2 years
Over on YouTube, Michael Penn proves that the sum of reciprocals of the palindromes converges:
But he doesn’t compute the value to which the sum converges.
Your task is to compute the infinite sum. When you are finished, you are welcome to read a suggested solution, or to post your own solution or discuss the exercise in the comments below.... -
2 years
Today’s exercise is from a beginner programming web site:
A prime number, such as 127, has no factors other than itself and one. A palindrome, such as 121, is the same number when its digits are reversed. A prime palindrome, such as 131, is both prime and a palindrome. Find the 100th prime palindrome.... -
2 years
[ I’ve had a couple of readers ask where I have been. I put in my retirement papers at work a few months ago, and will retire at the end of 2021. That sounds good, but setting up my post-retirement finances, learning about Medicare (it’s a huge mess...
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| Web host: | Automattic, Inc |
| Registrar: | Wild West Domains, LLC |
| Registrant: | ******** ******** |
| Updated: | May 16, 2018 |
| Expires: | June 15, 2019 |
| Created: | June 15, 2009 |
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