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
EXPLANATION
OF THE
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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