Ordinate of a point or vector in the plane

### 25.12.3 Ordinate of a point or vector in the plane

See Section 26.10.2 for ordinates in three-dimensional geometry.

The ordinate command finds the ordinate (y coordinate) of a point.

- ordinate takes P, a point.
- ordinate(P) returns the ordinate of P.

#### Examples

ordinate(point(1+2*i))

2 |  |  |  |  |  |  |  |  |  |

ordinate(point(i)-point(1+2*i))

−1 |  |  |  |  |  |  |  |  |  |

ordinate(1+2*i)

2 |  |  |  |  |  |  |  |  |  |

ordinate([1,2])

2 |  |  |  |  |  |  |  |  |  |