scho arc >>plane

plane

It is a two-dimensional basic object to treat in plane (there is it, noodles) mathematics or a concept.
I say intuitively and have the shape that widened flat paper endlessly.
It is studied by geometry or trigonometry in detail, and, in other words, the graphs are drawn in the two dimensions on a plane mainly.

When a plane was given, by what I introduce a X-Y coordinate system of Descartes into as technique of the analytic geometry, I can appoint the arbitrary point in the plane uniquely by the group of two real numbers.

Or the plane in the space is expressed as the whole of the subset that the whole solution of the equation (and a, b, c, d is a real number abc ≠ 0) makes when I expressed three-dimensional space in Cartesian coordinates (a xyz- coordinate) having three axles of x, y, z.
Or two primary independent three-dimensional vector v, w and three-dimensional vector u and form using two real numbers value parameter s, t can express this.
A point in this plane is tupple of the values of two parameters(s, t) I am similar and get together, and it is appointed uniquely.

In the indication by the vector, the dimension of the vector is not limited in particular.