Full text: Pergaeus, Apollonius: The two books of Apollonius Pergaeus, concerning tangencies, as they have been restored by Franciscus Vieta and Marinus Ghetaldus

92. AN
SYMBOLS made uſe of in this SYNOPSIS.

H. # repreſents the Hypothenuſe of a right-angled triangle.
V. # Vertical angle.
B. # Baſe or ſide oppoſite V.
P. # Perpendicular from V on B.
S&s. # Sides about V; S the greater, s the leſs.
A & a. # Angles at B; A the greater, a the leſs.
m & n. # Segments of B by P; m the greater, n the leſs.
Ar. # Area.
Per. # Perimeter.
L. # Line from V to B, biſecting V.
λ. # Line from V to B, cutting B in a given ratio.
l. # Any other line ſpecified how drawn.
R. # Radius of inſcribed circle.
☉(sun). # Circle.
◻. # Square.
: # Ratio: thus, S: s ſignifies the ratio of the ſides.

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