Mr. Victor Bolbot 1 Report post Posted September 24, 2015 Hi, I have to use modified Bessel functions of the first and second kind in my calculations. I checked in Caeses, didn't find any relevant, so decided to write a feature. However, these functions to achieve accurate results need too much time. And because it's necessary to use them in iteration process, the problem becomes even worse. Any hint how to improve the code? I attach the features to the post Regards, Victor BolbotBesselk.fdfcBesseli.fdfc 1 Share this post Link to post Share on other sites
Karsten Wenzke 12 Report post Posted September 24, 2015 Hey Victor, the feature code is good and to be honest I don't see any way to make it faster.It simply does take the time it needs....I am sorry. Maybe you can take a look at the global commands section in the documentation browser to check, weather one of your functions isalready available in CAESES. To access the global commandsOpen the documentation browser > Global commands (on the top)The mathematical functions sections might help you. Cheers, Karsten Share this post Link to post Share on other sites
Mr. Victor Bolbot 1 Report post Posted October 9, 2015 If anybody needs modified bessel functions of first and second kind (first order) here is the best solution that I found. The two formulas seem to work well in range between 0.4 and 40. Cheers,VictorBesselk.fdfcBesseli.fdfc Share this post Link to post Share on other sites