Rough estimates suggest it was about 1, 500 times faster than the best mechanical hand-cranked calculator of that era, he added.
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These are rough estimates, and there is a wide gap between the value of refined metal and the value of buried ore.
The IFS then goes on to make rough estimates of the distributional impact of all the cuts and shows an ever stepper regressive curve.
The authors' rough estimates suggest that America's Fed funds rate should have been almost 7.5% late last year, compared with an actual rate then of 5.5%.
These are very rough estimates, and in any event there is of course a wide gap between the value of refined metal and the value of buried ore.
Rough industry estimates suggest the PC version of Minecraft has sold about eight million copies.
He estimates that activity like the CIO trading strategy contributed about 20 cents a share to annual earnings, an amount by which he previously adjusted his estimates in a rough cut.
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Now, cancer-related risk estimates are "no more than a rough guesstimate, " David Brenner, an expert on radiation-induced cancer at Columbia University, said in an email.
Professor Uerpmann said the estimates of time using genetic data were "very rough".
Estimates circulating in Downing Street suggest that the number of rough sleepers in London has fallen from perhaps 2, 000 in the late 1980s to below 300 today.
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