/tmp/clpr

yes
| ?- [library('clpqr/examples/matmul')].
{consulting /freyung/christian/sicstus2.1.9.clp/library/clpqr/examples/matmul.pl...}
{/freyung/christian/sicstus2.1.9.clp/library/clpqr/examples/matmul.pl consulted, 50 msec 5216 bytes}

yes
| ?- inv_hilbert(5).
% took 110 msec
[25.000000000022382,-300.00000000049715,1050.0000000024052,-1400.0000000039422,630.000000002048]
[-300.0000000002686,4800.000000006132,-18900.00000003017,26880.000000050026,-12600.000000026208]
[1050.0000000010832,-18900.000000024073,79380.0000001167,-117600.00000019174,56700.00000009983]
[-1400.0000000012533,26880.000000028263,-117600.00000013839,179200.00000022893,-88200.00000011979]
[630.0000000007072,-12600.000000015554,56700.00000007495,-88200.00000012267,44100.00000006371]

yes
| ?- inv_hilbert(10).
% took 730 msec
[100.06764055606595,-4955.746750893468,79320.87311277707,-601688.1288004466,2527669.331989608,-6320363.588467166,9632548.1069225,-8773673.357856564,4387341.655298468,-926309.2549045784]
[-4954.583263505397,327088.43938125984,-5888755.171243939,47640829.722639784,-208454422.6267876,536080106.3050636,-833973190.0816677,771622619.5092161,-390658135.1887325,83309806.45795152]
[79282.65010987384,-5887588.611728508,113053989.38333344,-952665276.8719503,4287285196.6575603,-11254751273.977966,17786114554.87667,-16661528858.771124,8520389134.607941,-1832112969.2769487]
[-601278.28283175,47624803.379886195,-952549872.4286704,8255797058.086059,-37926415443.20429,101140061646.08708,-161828052714.71478,153124339918.90198,-78956146207.99248,17096182731.586212]
[2525510.463987293,-208360168.57612622,4286354582.629362,-37922951901.82854,176976129763.71933,-477840819028.144,772275161958.0231,-736819388616.1226,382581917280.6937,-83331832395.71211]
[-6314069.480648408,535789562.6820037,-11251522186.754816,101124429258.4978,-477811689383.5447,1303120253648.7231,-2123600181570.822,2040253943986.3867,-1065667328185.2559,233306407256.48602]
[9621777.540831676,-833457524.1493945,17779983322.230595,-161794800592.89096,772191081502.5444,-2123500324124.862,3484684566848.1865,-3367823701794.478,1768095223156.5308,-388814926368.6053]
[-8762948.703959834,771096470.9348224,-16655008795.382607,153086775081.8679,-736712226467.4573,2040086157995.643,-3367706777384.1885,3271442141044.1406,-1725154609484.48,380858222342.8272]
[4381581.535326206,-390370462.83225214,8516721017.329105,-78934185276.29749,382514968210.1026,-1065549816609.6667,1767985562818.6477,-1725107944970.8896,913278439265.5413,-202321697134.3589]
[-925019.6256684132,83244518.21734402,-1831262894.88349,17090956320.177563,-83315214328.6161,233275346511.60562,-388782247484.8793,380839681227.99866,-202317350053.5215,44958695698.27329]

yes
| ?- ^D