Modified Bessel Function K1 x actual bessk1(x) 0.10 9.8538446e+00 9.8538446e+00 0.20 4.7759724e+00 4.7759724e+00 0.40 2.1843543e+00 2.1843543e+00 0.60 1.3028349e+00 1.3028349e+00 0.80 8.6178166e-01 8.6178160e-01 1.00 6.0190725e-01 6.0190725e-01 1.20 4.3459240e-01 4.3459237e-01 1.40 3.2083589e-01 3.2083592e-01 1.60 2.4063392e-01 2.4063392e-01 1.80 1.8262309e-01 1.8262310e-01 2.00 1.3986588e-01 1.3986588e-01 2.50 7.3890813e-02 7.3890813e-02 3.00 4.0156431e-02 4.0156431e-02 3.50 2.2239393e-02 2.2239393e-02 4.00 1.2483499e-02 1.2483499e-02 4.50 7.0780949e-03 7.0780949e-03 5.00 4.0446133e-03 4.0446133e-03 6.00 1.3439197e-03 1.3439197e-03 8.00 1.5536921e-04 1.5536921e-04 10.00 1.8648772e-05 1.8648774e-05