Mathematics isn't
all about number crunching. If it were, we
could leave the job to computers and never learn another stitch of
math. Mathematics is really about thinking analytically and then
modeling, portraying, and predicting events ... both real and
imaginary. - DLH
 Pre-calculus
is a catch-all term for a series of studies that are initially
expressed in the language of algebra and leading to expressions of
basic calculus. It is a necessary step in the progression of mathematics education, from arithmetic through
calculus.
Sometime after completion a calculus program,
lifelong learners ought to return to the subject, but this time
going deeper into its two main topics —Trigonometry
and Geometry.
Trigonometry is a branch of mathematics that
studies the relationships between the sides and the
angles in triangles. Trigonometry defines the
trigonometric functions, which describe those
relationships and have applicability to cyclical
phenomena, such as waves.
[Adapted from Wikipedia
CC-BY-SA license]
In classical mathematics, analytic
geometry, also known as coordinate geometry
or Cartesian geometry, is the study of geometry
using a coordinate system. This contrasts with synthetic
geometry. Analytic geometry is widely
used in physics and engineering, and also in aviation,
rocketry, space science, and spaceflight. It is the
foundation of most modern fields of geometry, including
algebraic, differential, discrete and computational
geometry.
[Adapted from Wikipedia
CC-BY-SA license]
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