2016 Update
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16
Task/Monte-Carlo-methods/Fortran/monte-carlo-methods-2.f
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16
Task/Monte-Carlo-methods/Fortran/monte-carlo-methods-2.f
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program mc
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integer :: n,i
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real(8) :: pi
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n=10000
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do i=1,5
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print*,n,pi(n)
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n = n * 10
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end do
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end program
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function pi(n)
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integer :: n
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real(8) :: x(2,n),pi
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call random_number(x)
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pi = 4.d0 * dble( count( hypot(x(1,:),x(2,:)) <= 1.d0 ) ) / n
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end function
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