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- -- 'f' code formatting, with explicit precision (>= 0). Output always
- -- has the given number of places after the point; zeros are added if
- -- necessary to make this true.
- -- zeros
- %.0f 0 -> 0
- %.1f 0 -> 0.0
- %.2f 0 -> 0.00
- %.3f 0 -> 0.000
- %.50f 0 -> 0.00000000000000000000000000000000000000000000000000
- -- precision 0; result should never include a .
- %.0f 1.5 -> 2
- %.0f 2.5 -> 2
- %.0f 3.5 -> 4
- %.0f 0.0 -> 0
- %.0f 0.1 -> 0
- %.0f 0.001 -> 0
- %.0f 10.0 -> 10
- %.0f 10.1 -> 10
- %.0f 10.01 -> 10
- %.0f 123.456 -> 123
- %.0f 1234.56 -> 1235
- %.0f 1e49 -> 9999999999999999464902769475481793196872414789632
- %.0f 9.9999999999999987e+49 -> 99999999999999986860582406952576489172979654066176
- %.0f 1e50 -> 100000000000000007629769841091887003294964970946560
- -- precision 1
- %.1f 0.0001 -> 0.0
- %.1f 0.001 -> 0.0
- %.1f 0.01 -> 0.0
- %.1f 0.04 -> 0.0
- %.1f 0.06 -> 0.1
- %.1f 0.25 -> 0.2
- %.1f 0.75 -> 0.8
- %.1f 1.4 -> 1.4
- %.1f 1.5 -> 1.5
- %.1f 10.0 -> 10.0
- %.1f 1000.03 -> 1000.0
- %.1f 1234.5678 -> 1234.6
- %.1f 1234.7499 -> 1234.7
- %.1f 1234.75 -> 1234.8
- -- precision 2
- %.2f 0.0001 -> 0.00
- %.2f 0.001 -> 0.00
- %.2f 0.004999 -> 0.00
- %.2f 0.005001 -> 0.01
- %.2f 0.01 -> 0.01
- %.2f 0.125 -> 0.12
- %.2f 0.375 -> 0.38
- %.2f 1234500 -> 1234500.00
- %.2f 1234560 -> 1234560.00
- %.2f 1234567 -> 1234567.00
- %.2f 1234567.8 -> 1234567.80
- %.2f 1234567.89 -> 1234567.89
- %.2f 1234567.891 -> 1234567.89
- %.2f 1234567.8912 -> 1234567.89
- -- alternate form always includes a decimal point. This only
- -- makes a difference when the precision is 0.
- %#.0f 0 -> 0.
- %#.1f 0 -> 0.0
- %#.0f 1.5 -> 2.
- %#.0f 2.5 -> 2.
- %#.0f 10.1 -> 10.
- %#.0f 1234.56 -> 1235.
- %#.1f 1.4 -> 1.4
- %#.2f 0.375 -> 0.38
- -- if precision is omitted it defaults to 6
- %f 0 -> 0.000000
- %f 1230000 -> 1230000.000000
- %f 1234567 -> 1234567.000000
- %f 123.4567 -> 123.456700
- %f 1.23456789 -> 1.234568
- %f 0.00012 -> 0.000120
- %f 0.000123 -> 0.000123
- %f 0.00012345 -> 0.000123
- %f 0.000001 -> 0.000001
- %f 0.0000005001 -> 0.000001
- %f 0.0000004999 -> 0.000000
- -- 'e' code formatting with explicit precision (>= 0). Output should
- -- always have exactly the number of places after the point that were
- -- requested.
- -- zeros
- %.0e 0 -> 0e+00
- %.1e 0 -> 0.0e+00
- %.2e 0 -> 0.00e+00
- %.10e 0 -> 0.0000000000e+00
- %.50e 0 -> 0.00000000000000000000000000000000000000000000000000e+00
- -- precision 0. no decimal point in the output
- %.0e 0.01 -> 1e-02
- %.0e 0.1 -> 1e-01
- %.0e 1 -> 1e+00
- %.0e 10 -> 1e+01
- %.0e 100 -> 1e+02
- %.0e 0.012 -> 1e-02
- %.0e 0.12 -> 1e-01
- %.0e 1.2 -> 1e+00
- %.0e 12 -> 1e+01
- %.0e 120 -> 1e+02
- %.0e 123.456 -> 1e+02
- %.0e 0.000123456 -> 1e-04
- %.0e 123456000 -> 1e+08
- %.0e 0.5 -> 5e-01
- %.0e 1.4 -> 1e+00
- %.0e 1.5 -> 2e+00
- %.0e 1.6 -> 2e+00
- %.0e 2.4999999 -> 2e+00
- %.0e 2.5 -> 2e+00
- %.0e 2.5000001 -> 3e+00
- %.0e 3.499999999999 -> 3e+00
- %.0e 3.5 -> 4e+00
- %.0e 4.5 -> 4e+00
- %.0e 5.5 -> 6e+00
- %.0e 6.5 -> 6e+00
- %.0e 7.5 -> 8e+00
- %.0e 8.5 -> 8e+00
- %.0e 9.4999 -> 9e+00
- %.0e 9.5 -> 1e+01
- %.0e 10.5 -> 1e+01
- %.0e 14.999 -> 1e+01
- %.0e 15 -> 2e+01
- -- precision 1
- %.1e 0.0001 -> 1.0e-04
- %.1e 0.001 -> 1.0e-03
- %.1e 0.01 -> 1.0e-02
- %.1e 0.1 -> 1.0e-01
- %.1e 1 -> 1.0e+00
- %.1e 10 -> 1.0e+01
- %.1e 100 -> 1.0e+02
- %.1e 120 -> 1.2e+02
- %.1e 123 -> 1.2e+02
- %.1e 123.4 -> 1.2e+02
- -- precision 2
- %.2e 0.00013 -> 1.30e-04
- %.2e 0.000135 -> 1.35e-04
- %.2e 0.0001357 -> 1.36e-04
- %.2e 0.0001 -> 1.00e-04
- %.2e 0.001 -> 1.00e-03
- %.2e 0.01 -> 1.00e-02
- %.2e 0.1 -> 1.00e-01
- %.2e 1 -> 1.00e+00
- %.2e 10 -> 1.00e+01
- %.2e 100 -> 1.00e+02
- %.2e 1000 -> 1.00e+03
- %.2e 1500 -> 1.50e+03
- %.2e 1590 -> 1.59e+03
- %.2e 1598 -> 1.60e+03
- %.2e 1598.7 -> 1.60e+03
- %.2e 1598.76 -> 1.60e+03
- %.2e 9999 -> 1.00e+04
- -- omitted precision defaults to 6
- %e 0 -> 0.000000e+00
- %e 165 -> 1.650000e+02
- %e 1234567 -> 1.234567e+06
- %e 12345678 -> 1.234568e+07
- %e 1.1 -> 1.100000e+00
- -- alternate form always contains a decimal point. This only makes
- -- a difference when precision is 0.
- %#.0e 0.01 -> 1.e-02
- %#.0e 0.1 -> 1.e-01
- %#.0e 1 -> 1.e+00
- %#.0e 10 -> 1.e+01
- %#.0e 100 -> 1.e+02
- %#.0e 0.012 -> 1.e-02
- %#.0e 0.12 -> 1.e-01
- %#.0e 1.2 -> 1.e+00
- %#.0e 12 -> 1.e+01
- %#.0e 120 -> 1.e+02
- %#.0e 123.456 -> 1.e+02
- %#.0e 0.000123456 -> 1.e-04
- %#.0e 123456000 -> 1.e+08
- %#.0e 0.5 -> 5.e-01
- %#.0e 1.4 -> 1.e+00
- %#.0e 1.5 -> 2.e+00
- %#.0e 1.6 -> 2.e+00
- %#.0e 2.4999999 -> 2.e+00
- %#.0e 2.5 -> 2.e+00
- %#.0e 2.5000001 -> 3.e+00
- %#.0e 3.499999999999 -> 3.e+00
- %#.0e 3.5 -> 4.e+00
- %#.0e 4.5 -> 4.e+00
- %#.0e 5.5 -> 6.e+00
- %#.0e 6.5 -> 6.e+00
- %#.0e 7.5 -> 8.e+00
- %#.0e 8.5 -> 8.e+00
- %#.0e 9.4999 -> 9.e+00
- %#.0e 9.5 -> 1.e+01
- %#.0e 10.5 -> 1.e+01
- %#.0e 14.999 -> 1.e+01
- %#.0e 15 -> 2.e+01
- %#.1e 123.4 -> 1.2e+02
- %#.2e 0.0001357 -> 1.36e-04
- -- 'g' code formatting.
- -- zeros
- %.0g 0 -> 0
- %.1g 0 -> 0
- %.2g 0 -> 0
- %.3g 0 -> 0
- %.4g 0 -> 0
- %.10g 0 -> 0
- %.50g 0 -> 0
- %.100g 0 -> 0
- -- precision 0 doesn't make a lot of sense for the 'g' code (what does
- -- it mean to have no significant digits?); in practice, it's interpreted
- -- as identical to precision 1
- %.0g 1000 -> 1e+03
- %.0g 100 -> 1e+02
- %.0g 10 -> 1e+01
- %.0g 1 -> 1
- %.0g 0.1 -> 0.1
- %.0g 0.01 -> 0.01
- %.0g 1e-3 -> 0.001
- %.0g 1e-4 -> 0.0001
- %.0g 1e-5 -> 1e-05
- %.0g 1e-6 -> 1e-06
- %.0g 12 -> 1e+01
- %.0g 120 -> 1e+02
- %.0g 1.2 -> 1
- %.0g 0.12 -> 0.1
- %.0g 0.012 -> 0.01
- %.0g 0.0012 -> 0.001
- %.0g 0.00012 -> 0.0001
- %.0g 0.000012 -> 1e-05
- %.0g 0.0000012 -> 1e-06
- -- precision 1 identical to precision 0
- %.1g 1000 -> 1e+03
- %.1g 100 -> 1e+02
- %.1g 10 -> 1e+01
- %.1g 1 -> 1
- %.1g 0.1 -> 0.1
- %.1g 0.01 -> 0.01
- %.1g 1e-3 -> 0.001
- %.1g 1e-4 -> 0.0001
- %.1g 1e-5 -> 1e-05
- %.1g 1e-6 -> 1e-06
- %.1g 12 -> 1e+01
- %.1g 120 -> 1e+02
- %.1g 1.2 -> 1
- %.1g 0.12 -> 0.1
- %.1g 0.012 -> 0.01
- %.1g 0.0012 -> 0.001
- %.1g 0.00012 -> 0.0001
- %.1g 0.000012 -> 1e-05
- %.1g 0.0000012 -> 1e-06
- -- precision 2
- %.2g 1000 -> 1e+03
- %.2g 100 -> 1e+02
- %.2g 10 -> 10
- %.2g 1 -> 1
- %.2g 0.1 -> 0.1
- %.2g 0.01 -> 0.01
- %.2g 0.001 -> 0.001
- %.2g 1e-4 -> 0.0001
- %.2g 1e-5 -> 1e-05
- %.2g 1e-6 -> 1e-06
- %.2g 1234 -> 1.2e+03
- %.2g 123 -> 1.2e+02
- %.2g 12.3 -> 12
- %.2g 1.23 -> 1.2
- %.2g 0.123 -> 0.12
- %.2g 0.0123 -> 0.012
- %.2g 0.00123 -> 0.0012
- %.2g 0.000123 -> 0.00012
- %.2g 0.0000123 -> 1.2e-05
- -- bad cases from http://bugs.python.org/issue9980
- %.12g 38210.0 -> 38210
- %.12g 37210.0 -> 37210
- %.12g 36210.0 -> 36210
- -- alternate g formatting: always include decimal point and
- -- exactly <precision> significant digits.
- %#.0g 0 -> 0.
- %#.1g 0 -> 0.
- %#.2g 0 -> 0.0
- %#.3g 0 -> 0.00
- %#.4g 0 -> 0.000
- %#.0g 0.2 -> 0.2
- %#.1g 0.2 -> 0.2
- %#.2g 0.2 -> 0.20
- %#.3g 0.2 -> 0.200
- %#.4g 0.2 -> 0.2000
- %#.10g 0.2 -> 0.2000000000
- %#.0g 2 -> 2.
- %#.1g 2 -> 2.
- %#.2g 2 -> 2.0
- %#.3g 2 -> 2.00
- %#.4g 2 -> 2.000
- %#.0g 20 -> 2.e+01
- %#.1g 20 -> 2.e+01
- %#.2g 20 -> 20.
- %#.3g 20 -> 20.0
- %#.4g 20 -> 20.00
- %#.0g 234.56 -> 2.e+02
- %#.1g 234.56 -> 2.e+02
- %#.2g 234.56 -> 2.3e+02
- %#.3g 234.56 -> 235.
- %#.4g 234.56 -> 234.6
- %#.5g 234.56 -> 234.56
- %#.6g 234.56 -> 234.560
- -- repr formatting. Result always includes decimal point and at
- -- least one digit after the point, or an exponent.
- %r 0 -> 0.0
- %r 1 -> 1.0
- %r 0.01 -> 0.01
- %r 0.02 -> 0.02
- %r 0.03 -> 0.03
- %r 0.04 -> 0.04
- %r 0.05 -> 0.05
- -- values >= 1e16 get an exponent
- %r 10 -> 10.0
- %r 100 -> 100.0
- %r 1e15 -> 1000000000000000.0
- %r 9.999e15 -> 9999000000000000.0
- %r 9999999999999998 -> 9999999999999998.0
- %r 9999999999999999 -> 1e+16
- %r 1e16 -> 1e+16
- %r 1e17 -> 1e+17
- -- as do values < 1e-4
- %r 1e-3 -> 0.001
- %r 1.001e-4 -> 0.0001001
- %r 1.0000000000000001e-4 -> 0.0001
- %r 1.000000000000001e-4 -> 0.0001000000000000001
- %r 1.00000000001e-4 -> 0.000100000000001
- %r 1.0000000001e-4 -> 0.00010000000001
- %r 1e-4 -> 0.0001
- %r 0.99999999999999999e-4 -> 0.0001
- %r 0.9999999999999999e-4 -> 9.999999999999999e-05
- %r 0.999999999999e-4 -> 9.99999999999e-05
- %r 0.999e-4 -> 9.99e-05
- %r 1e-5 -> 1e-05
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