[Octave-bug-tracker] [bug #59979] Unexpected format for output from datevec

[anonymous]

Follow-up Comment #1, bug #59979 (project octave):

This sounds like no more than a floating point rounding issue. The value of
your 20 minute difference is 0.01388888887595385.

octave:2>
datenum_20_min_diff=datenum([2021,1,27,17,0,0])-datenum([2021,1,27,16,40,0])
datenum_20_min_diff = 0.01388888887595385


Which upon multiplying by 86400 seconds in a day falls short of 20 minutes by
1.117 microseconds:

octave:3> datenum_20_min_diff * 86400
ans = 1199.999998882413
octave:4> datenum_20_min_diff * 86400 - 1200
ans = 1.117587089538574e-06


You may want to try setting your 20 minute difference to 1200/86400 since you
know it's exactly 20 minutes, or even better, work in units that don't need
small fractions until you're ready to print.

In either case, this doesn't look like a bug.

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