### Target Audience: High School Students, College Freshmen and Sophomores, Class 11/12 Students in India preparing for ISC/CBSE and Entrance Examinations like the IIT-JEE Main or Advanced/AIEEE, and anyone else who needs this Tutorial as a reference!

(Images, clockwise from top: Ellipse, Parabola, Hyperbola. )
(x/a)^2 + (y/b)^2 = 1

Eccentricity:
e = Square root of (1 - (b/a)^2)

Linear Eccentricity:
c = Square root of ( b^2 - a^2 )

Semi Latus Rectum:
l = b^2 / a

Focal Parameter:
p =  b^2 / Square root of ( b^2 - a^2)

### 2. Equation of a Parabola

y^2 = 4ax

Eccentricity = 1
Linear Eccentricity (c) = Semi Latus Rectum (l) = Focal Parameter (p) = 2a

### 3. Equation of a Hyperbola

(x/a)^2  - (y/b)^2 = 1                                                                                                                                     Above: An Ellipse, Below: Parabola :

Eccentricity:
e = Square root of (1 + (b/a)^2)

Linear Eccentricity:
c = Square root of ( b^2 + a^2 )

Semi Latus Rectum:
l = b^2 / a

Focal Parameter:
p =  b^2 / Square root of ( b^2 + a^2)

A Hyperbola: