Page:A History Of Mathematical Notations Vol I (1928).djvu/157

Rh ance of the plus and minus signs in Holland. As the symbols for powers one finds here the notation of Grammateus, N., pri., se., 3a, 4a, 5a, etc., though occasionally, to fill out a space on a line, one en-



counters numerus, num., or nu. in place of N.; also secu. in place of se. For pri. he uses a few times ṗ.

The translation of matter shown in Figure 60 is as follows: "[In order to multiply fractions simply multiply numerators by numera-