Bessel_i0_scaled
Definition:
/math-ccf43efd4b1cd50685472a7ee29becba.png "i0\_scaled = bessel\_i0\_scaled(x)")
evaluates an approximation to /math-b88e9c78c98f362fa286aa6b364fea68.png "e^{-|x|}I_0(x)")
, where IO is a modified Bessel function of the first kind. The scaling factor /math-256b87c9dd69b58688ee5fe48b812611.png "e^{-|x|}")
removes most of the variation in /math-a2dae81b154097f6b712af44003ee8bc.png "I_0(x)")
.
For more information please review the s8cec function in the NAG document.
Parameters:
- x (input, double)
- The argument x of the function.
- i0_scaled (output, double)
- Approximation of .