Function format3dforcplusplus

Scripts/Python/convolve.py:13–14

(arr)

    return '{' + ','.join(format1dforcplusplus(e) for e in arr) + '}'

def format3dforcplusplus(arr):
    return '{' + ','.join('\n'+format2dforcplusplus(e) for e in arr) + '}'

# obtain a 2D tri-Laplacian stencil by convolving lap2d with bilap2d
lap2d = np.array([[1,4,1], [4,-20,4], [1,4,1]]) # / 6h^2