Display a linear combination: Difference between revisions

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 {{trans|Python}}
 <lang 11l>F linear(x)
-   V a = enumerate(x).filter2((i, v) -> v != 0).map((i, v) -> ‘#.e(#.0)’.format(I v == -1 {‘-’} E I v == 1 {‘’} E String(v)‘*’, i + 1))
+   V a = enumerate(x).filter2((i, v) -> v != 0).map2((i, v) -> ‘#.e(#.)’.format(I v == -1 {‘-’} E I v == 1 {‘’} E String(v)‘*’, i + 1))
    R (I !a.empty {a} E [String(‘0’)]).join(‘ + ’).replace(‘ + -’, ‘ - ’)