# What is parametric equations and give examples?

## What is parametric equations and give examples?

Converting from rectangular to parametric can be very simple: given y=f(x), the parametric equations x=t, y=f(t) produce the same graph. As an example, given y=x2, the parametric equations x=t, y=t2 produce the familiar parabola. However, other parametrizations can be used.

### What are parametric equations in calculus?

The derivative of the parametrically defined curve x=x(t) and y=y(t) can be calculated using the formula dydx=y′(t)x′(t). Using the derivative, we can find the equation of a tangent line to a parametric curve. The area between a parametric curve and the x-axis can be determined by using the formula A=∫t2t1y(t)x′(t)dt.

#### What is the purpose of parametric equations?

Parametric equations are commonly used to express the coordinates of the points that make up a geometric object such as a curve or surface, in which case the equations are collectively called a parametric representation or parameterization (alternatively spelled as parametrisation) of the object.

**Who discovered parametric equation?**

Parametric Origins. The term parametric originates in mathematics, but there is debate as to when designers initially began using the word. David Gerber (2007, 73), in his doctoral thesis Parametric Practice, credits Maurice Ruiter for first using the term in a paper from 1988 entitled Parametric Design [1].

**Why do we study parametric equations?**

Parametric equations can be used to describe all types of curves that can be represented on a plane but are most often used in situations where curves on a Cartesian plane cannot be described by functions (e.g., when a curve crosses itself).

## What are the applications of parametric equations?

### Where are parametric equations used?

#### Where are parametric equations used in real life?

Parametric equations allow you to actually graph the complete position of an object over time. For example, parametric equations allow you to make a graph that represents the position of a point on a Ferris wheel.

**What’s the purpose of parametric equations?**