Hello Federico, I'm not sure to understand exactly your needs but:
> De : Federico Miyara > Envoyé : mardi 5 janvier 2021 09:20 > > --> sin(%pi) > ans = > 0.0000000000000001224647 seems to be something we cannot get rid off unless using symbolic calculation i.e. having a specific variable for pi which is recognised and gives the exact result with given functions. > 1) How is the sin() function extended to very large values of the argument? I don’t know about Scilab but as it is initially based on Fortran, it probably uses the related Fortran library (or maybe a more modern library, this is not documented). You might have some answers here: https://en.wikipedia.org/wiki/Sine#Software_implementations Hope this helps, Regards -- Christophe Dang Ngoc Chan Mechanical calculation engineer General This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. _______________________________________________ users mailing list users@lists.scilab.org http://lists.scilab.org/mailman/listinfo/users