2021-02-27 09:08:38 +0100 | received badge | ● Popular Question (source) |

2019-03-23 02:12:35 +0100 | asked a question | 3D line from equations to parametric In 3D space, given a line defined as the solution of two equations (two planes intersection) like in: how to obtain the direction vector and one (any) line point (parametric form) ? This solution from solve: has an answer in parametric form, but with parameter "r13" that has a name unpredictable and not usable in next steps. This solution from solve: solves the issues of the previous, but it has been assumed that "x" is a valid parameter for the line ( something not true, by example, in case of vertical line: [ x==10 , y==2 ] ) The target is, by example, to obtain a parametric expression of any line that after can be used in a call to "parametric_plot3d". |

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