| T O P I C R E V I E W |
| zhaoshuang |
Posted - 11/11/2003 : 5:13:57 PM
I am quite urgent to know how to fit this equation.
y(x)=a[1-e^{-bx}J(ibx)]
J(ibx) is the zeroth order Bessel Function? |
| 1 L A T E S T R E P L I E S (Newest First) |
| greg |
Posted - 11/12/2003 : 4:28:19 PM
Origin has built-in Bessel functions of both the First Kind and the Second Kind of order 0 and order1 in both LabTalk and OriginC:
J0(argument) Compute the Bessel function of the first kind of order 0
J1(argument) Compute the Bessel function of the first kind of order 1
Y0(argument) Compute the Bessel function of the second kind of order 0
Y1(argument) Compute the Bessel function of the second kind of order 1
so you should be able to J0(b*x), for example. Note that these are only real-valued functions, so if your 'i' indicates you are working with complex values, this would not work.
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