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You are not logged in. #1 20051024 02:09:10
Please help me on Bessel FunctionA Bessel function (of the first kind, I mean here) can nowdays be routinely calculated if given the order of the Bessel function. Bessel Function plots are also known corresponding to specific orders. Pls visit #2 20051024 12:42:52
Re: Please help me on Bessel FunctionI know nothing about Bessel functions, but I went to the address you gave, and the three graphs shown there all look differentthey all intersect the yaxis in different spots. Are they all different orders? Perhaps you could tell them apart in this way  by their y intercept. El que pega primero pega dos veces. #3 20051025 04:45:04
Re: Please help me on Bessel FunctionThank you, ryos. You are right, the zeroorder Bessel function can be easily identified because it has intercept on yaxis at 1. However, all other Bessel functions intersect the yaxis at zero. The problem is how to recognize those higherorder Bessel functions? #4 20051025 05:03:36
Re: Please help me on Bessel FunctionThe second two graphs on the page you linked are subtly different. One begins concaveupward, the other downward. I'm betting you could guess it from the slope of a tangent line near 0. El que pega primero pega dos veces. #5 20051025 05:12:47
Re: Please help me on Bessel FunctionIt looks like a graph of dampened harmonic motion  a sinusoidal wave whose amplitude is constantly changing subject to an exponential decay  but it might just be something similar. Why did the vector cross the road? It wanted to be normal. #6 20051025 16:32:19
Re: Please help me on Bessel FunctionThe wabpage that I refered to gives just a very few samples. In practice, I have measurements that could be described as Bessel functions of all possible kinds of orders from 0 to 40 around. My problem is how to retreive exactly the order of the corresponding Bessel function. 