13 lines
307 B
Ruby
13 lines
307 B
Ruby
# prepare test data
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x = [1, 2, 3, 1e11]
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y = x.collect { |xx| Math.sqrt xx }
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xprecision = 3
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yprecision = 5
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# write the arrays
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open('sqrt.dat', 'w') do |f|
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x.zip(y) { |xx, yy| f.printf("%.*g\t%.*g\n", xprecision, xx, yprecision, yy) }
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end
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# print the result file
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open('sqrt.dat', 'r') { |f| puts f.read }
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