Meme of two women fighting while a man smokes from a pipe in the background.

The women fighting are labeled “mathematicians defining pi” and “engineers just using 3 because it’s within tolerance”

The man smoking is labeled “astrophysicists” and the pipe is labeled “pi = 1”

  • Mad_Punda@feddit.org
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    2 days ago

    And then you’re using C++ and they scold you for including cmath for just M_PI because it increases compilation times.

    • Telemachus93@slrpnk.net
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      2 days ago

      We’re talking about engineers here! We’re using MATLAB or Python if we’re programming at all.

    • Fushuan [he/him]@lemmy.blahaj.zone
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      1 day ago

      As they should, if that’s the only thing you are using it for, don’t introduce a whole header file, just put the following in the constants.h or equivalent that the proj for sure has:

      #define M_PI   3.14159265358979323846264338327950288
      

      Yes, it’s literally what math.h has defined.

      • zaphod@sopuli.xyz
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        6 hours ago

        If I’m not completely mistaken M_PI is not part of the C standard, so depending on your stdlib or compiler or even compiler flags you will have to define it yourself even in C.