When I try to use pi in my program, I’m offered 2 options for each value M_1_PI, M_2_SQRTPI, etc.

I can’t find anything different between the two options, is there any difference?

thanks!

I think I might be misunderstanding your question, but this might help: Math Constants | Microsoft Learn. It is a list of the values of constants including M_1_PI and M_2_SQRTPI, which are different.

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no, I know that, but the value M_1_PI shows up twice in the autocomplete

No matter what shows up in the autocomplete, M_1_PI will aways have the value of 1/pi.

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1 over pi or normal pi?

If you look at the link above, you will see that M_1_PI is 1/pi, and M_PI is normal, 3.14, pi.

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thanks for clearing that up!