Abraham Niederländer
Abraham ben Ephraim Niederländer (Hebrew: אַבְרָהָם בֶּן אֶפְרַיִם נידרלנדר), also known as Abraham Sofer and the Sofer of Prague, was a 16th-century Jewish-Austrian mathematician. The sofer of Rabbi Judah Loew ben Bezalel, he also wrote Brit Avraham (1609), a work of Jewish arithmetic based largely on Elijah Mizrachi's Sefer ha-Mispar, as well as general mathematics books.
Abraham ben Ephraim Niederländer (Hebrew: אַבְרָהָם בֶּן אֶפְרַיִם נידרלנדר), also known as Abraham Sofer and the Sofer of Prague, was a 16th-century Jewish-Austrian mathematician. The sofer of Rabbi Judah Loew ben Bezalel, he also wrote Brit Avraham (1609), a work of Jewish arithmetic based largely on Elijah Mizrachi's Sefer ha-Mispar, as well as general mathematics books.

References

 This article incorporates text from a publication now in the public domain: Singer, Isidore; Lauterbach, Jacob Zallel (1901–1906). "Niederländer, Abraham ben Ephraim". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. New York: Funk & Wagnalls.