On Mar 3, 2010, at 10:50 AM, kstueve wrote:
I've been working more on TOS's Li based pi(x) approximation code. I've been trying to optimize it in c. It seems that I need someone more knowledgeable than myself in c to point out some simple mistake I am making that is preventing the code from giving the correct answer. I tried copying and pasting the li function below into a Sage cell and "Pythonizing" it, and I got the expected answer, but as is in a c file, with commands being piped in the command line, I get unexpected results in Sage. I believe that the c li function below is correct-I think I am just making some sort of simple error in moving data around. I have already asked one of my peers in my number theory class, and we are both stuck.
If it works in Python is there any reason you're not just cythonizing it? (That would also seem easier than trying to use the subprocess module, and if you care about speed that could be a lot of overhead you'll save as well.)
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