Note 29 — V. Algebraical Functions
Reading edition
See Niewenglowski's Cours de géométrie analytique, vol. 2, p. 103. By way of illustration of the remark concerning particular cases in the footnote (4) to page 30, the reader may consider the example given by Niewenglowski in which equations which appear to represent the straight line (part of the line only, if we consider only real values of ).