Numeric error propagation: Difference between revisions
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J: explain why we have @}. in the unc definition
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Line 681:
unc=: {:@}."1 : ,.
dist=: +/&.:*:</lang>
Note that if a number has no uncertainty assigned to it, we assume the uncertainty is zero.
Jumping into the example values, for illustration purposes:
Line 720 ⟶ 722:
<lang j> exp&0.5 (x1 sub x2) add&(exp&2) y1 sub y2
111.803 2.48717</lang>
=={{header|Java}}==
<lang java>public class Approx {
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