mirror of
https://github.com/pfloos/quack
synced 2024-11-05 05:33:50 +01:00
32 lines
2.3 KiB
C
32 lines
2.3 KiB
C
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! Gauss-Legendre quadrature roots and weights
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integer,parameter :: nQuad = 21
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double precision, save :: rQuad(1:nQuad) = &
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(/ 0.00312391468981d0 , 0.0163865807168d0 , 0.0399503329248d0 , 0.0733183177083d0 , 0.115780018262d0 , &
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0.166430597901d0 , 0.224190582056d0 , 0.287828939896d0 , 0.355989341599d0 , 0.42721907292d0 , &
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0.5d0 , 0.57278092708d0 , 0.644010658401d0 , 0.712171060104d0 , 0.775809417944d0 , &
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0.833569402099d0 , 0.884219981738d0 , 0.926681682292d0 , 0.960049667075d0 , 0.983613419283d0 , &
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0.99687608531d0 /)
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double precision, save :: wQuad(1:nQuad) = &
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(/ 0.0080086141288872d0, 0.018476894885426d0, 0.028567212713429d0, 0.03805005681419d0 , 0.046722211728017d0, &
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0.054398649583574d0 , 0.060915708026864d0, 0.066134469316669d0, 0.069943697395537d0, 0.072262201994985d0, &
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0.07304056682485d0 , 0.072262201994985d0, 0.069943697395537d0, 0.066134469316669d0, 0.060915708026864d0, &
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0.054398649583574d0 , 0.046722211728017d0, 0.03805005681419d0 , 0.028567212713429d0, 0.018476894885426d0, &
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0.0080086141288872d0 /)
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integer,parameter :: nAC = 21
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double precision, save :: rAC(1:nAC) = &
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(/ 0.00312391468981d0 , 0.0163865807168d0 , 0.0399503329248d0 , 0.0733183177083d0 , 0.115780018262d0 , &
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0.166430597901d0 , 0.224190582056d0 , 0.287828939896d0 , 0.355989341599d0 , 0.42721907292d0 , &
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0.5d0 , 0.57278092708d0 , 0.644010658401d0 , 0.712171060104d0 , 0.775809417944d0 , &
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0.833569402099d0 , 0.884219981738d0 , 0.926681682292d0 , 0.960049667075d0 , 0.983613419283d0 , &
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0.99687608531d0 /)
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double precision, save :: wAc(1:nAC) = &
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(/ 0.0080086141288872d0, 0.018476894885426d0, 0.028567212713429d0, 0.03805005681419d0 , 0.046722211728017d0, &
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0.054398649583574d0 , 0.060915708026864d0, 0.066134469316669d0, 0.069943697395537d0, 0.072262201994985d0, &
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0.07304056682485d0 , 0.072262201994985d0, 0.069943697395537d0, 0.066134469316669d0, 0.060915708026864d0, &
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0.054398649583574d0 , 0.046722211728017d0, 0.03805005681419d0 , 0.028567212713429d0, 0.018476894885426d0, &
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0.0080086141288872d0 /)
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