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9 lines
127 B
Fortran
9 lines
127 B
Fortran
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subroutine peakup(ym,y0,yp,dx)
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b=(yp-ym)/2.0
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c=(yp+ym-2.0*y0)/2.0
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dx=-b/(2.0*c)
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return
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end subroutine peakup
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