Changeset ca6cbc1c in sasview
 Timestamp:
 Jan 17, 2017 7:20:37 AM (6 years ago)
 Branches:
 master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release4.1.1, release4.1.2, release4.2.2, ticket1009, ticket1094headless, ticket12422dresolution, ticket1243, ticket1249, ticket885, unittestsaveload
 Children:
 ef0e644
 Parents:
 ae9b8bf
 File:

 1 edited
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src/sas/sasgui/perspectives/fitting/media/plugin.rst
rca1eaeb rca6cbc1c 568 568 cube(x): 569 569 $x^3$ 570 s inc(x):570 sas_sinx_x(x): 571 571 $\sin(x)/x$, with limit $\sin(0)/0 = 1$. 572 572 powr(x, y): … … 669 669 (`link to Bessel function's code <https://github.com/SasView/sasmodels/tree/master/sasmodels/models/lib/sas_JN.c>`_) 670 670 671 Si(x):671 sas_Si(x): 672 672 Sine integral $\text{Si}(x) = \int_0^x \tfrac{\sin t}{t}\,dt$. 673 673 … … 693 693 (`link to code <https://github.com/SasView/sasmodels/tree/master/sasmodels/models/lib/Si.c>`_) 694 694 695 s ph_j1c(x):695 sas_3j1x_x(x): 696 696 Spherical Bessel form 697 697 $\text{sph_j1c}(x) = 3 j_1(x)/x = 3 (\sin(x)  x \cos(x))/x^3$, … … 701 701 This function uses a Taylor series for small $x$ for numerical accuracy. 702 702 703 :code:`source = ["lib/s ph_j1c.c", ...]`704 (`link to code <https://github.com/SasView/sasmodels/tree/master/sasmodels/models/lib/s ph_j1c.c>`_)705 706 707 sas_ J1c(x):703 :code:`source = ["lib/sas_3j1x_x.c", ...]` 704 (`link to code <https://github.com/SasView/sasmodels/tree/master/sasmodels/models/lib/sas_3j1x_x.c>`_) 705 706 707 sas_2J1x_x(x): 708 708 Bessel form $\text{sas_J1c}(x) = 2 J_1(x)/x$, with a limiting value 709 709 of 1 at $x=0$, where $J_1(x)$ is the Bessel function of first kind
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