 Thus, these writers in English have a different appreciation of Budan's work to a French writer, such as Bourdon; indeed, Horner was praised over Budan for being able to go directly from p(x) to p(x+a) for any a, rather than taking this in steps after the manner of Budan.Barlow and Horner show some awareness of the work of another writer in French, (1773-1849), who also looked at how to obtain the coefficients of p(x+a) from those of p(x) along the lines of Budan and Horner about the same time as Horner first published his work.But Budan's name and theorem only appear in late editions of Francoeur's book.