Changeset 57c609b in sasmodels
 Timestamp:
 Oct 12, 2018 4:14:45 PM (5 weeks ago)
 Branches:
 master, beta_approx, py3, ticket1015gpumemerror, ticket1015quickfix, ticket1157, ticket608userdefinedweights, ticket_1156
 Children:
 a4f1a73
 Parents:
 fba9ca0
 File:

 1 edited
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doc/guide/plugin.rst
rfba9ca0 r57c609b 829 829 If $n$ = 0 or 1, it uses sas_J0($x$) or sas_J1($x$), respectively. 830 830 831 Warning: JN(n,x) can be very inaccurate (0.1%) for x not in [0.1, 100]. 832 831 833 The standard math function jn(n, x) is not available on all platforms. 832 834 … … 837 839 Sine integral Si\ $(x) = \int_0^x \tfrac{\sin t}{t}\,dt$. 838 840 841 Warning: Si(x) can be very inaccurate (0.1%) for x in [0.1, 100]. 842 839 843 This function uses Taylor series for small and large arguments: 840 844 841 For large arguments ,845 For large arguments use the following Taylor series, 842 846 843 847 .. math:: … … 847 851  \frac{\sin(x)}{x}\left(\frac{1}{x}  \frac{3!}{x^3} + \frac{5!}{x^5}  \frac{7!}{x^7}\right) 848 852 849 For small arguments ,853 For small arguments , 850 854 851 855 .. math::
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