singular transformation

singular transformation

[′siŋ·gyə·lər tranz·fər′mā·shən]
(mathematics)
A linear transformation which has no corresponding inverse transformation.
References in classic literature ?
Since Aramis's singular transformation into a confessor of the order, Baisemeaux was no longer the same man.
However, the exact mechanism behind the transduction of the environmental signals into the molecular cascade that underlies this singular transformation remains largely unknown.
A little before any of these, Outcault had published in the Sunday supplement of the New York World a colored sequence that in six boxes unfolded the singular transformation of an anaconda that swallowed a succulent yellow dog.