What is the condition for a hypocycloid to be a straight line?

What is the condition for a hypocycloid to be a straight line?

Properties. If k is an integer, then the curve is closed, and has k cusps (i.e., sharp corners, where the curve is not differentiable). Specially for k=2 the curve is a straight line and the circles are called Cardano circles.

What is the difference between a hypocycloid and epicycloid?

An epicycloid is a plane curve created by tracing a chosen point on the edge of a circle of radius r rolling on the outside of a circle of radius R. A hypocycloid is obtained similarly except that the circle of radius r rolls on the inside of the circle of radius R. If k is an integer, the curve has k cusps.

What is a hypocycloid used for?

noun Geometry. a curve generated by the motion of a point on the circumference of a circle that rolls internally, without slipping, on a given circle.

What is hypocycloid and Epicycloid?

is that epicycloid is (geometry) the locus of a point on the circumference of a circle that rolls without slipping on the circumference of another circle while hypocycloid is (geometry) the locus of a point on the circumference of a circle that rolls without slipping inside the circumference of another circle.

What is the equation of Hypocycloid?

The point P=(x,y) is described by the equations: x=(a−b)cosθ+bcos((a−bb)θ) y=(a−b)sinθ−bsin((a−bb)θ)

What is cycloidal curve?

In geometry, a cycloid is the curve traced by a point on a circle as it rolls along a straight line without slipping. A cycloid is a specific form of trochoid and is an example of a roulette, a curve generated by a curve rolling on another curve.

What logo has a hypocycloid?

Steelers
The yellow hypocycloid represents coal, red stands for iron ore, and blue represents steel scrap. The Steelers appealed to the institute to use its logo. Before it was official, the team revised the word “Steel” to “Steelers.”

Who invented hypocycloid?

This result was noted by the Persian astronomer and mathematician Nasir Al-Din al-Tusi (1201-1274), and is sometimes known as a “Tusi couple” is his honor (Sotiroudis and Paschos 1999, p.

How do you tell if it is a cardioid?

A cardioid is a mathematical shape that resembles a heart or the cross section of an apple cut in half. A cardioid shape can be created by following the path of a point on a circle as the circle rolls around another fixed circle, with both of the circles having the same radius.