How do I "ask" or input a command line for parametric and polar curves with other variables than x such as r, (theta), y etc? thank you

1 | initial version |

How do I "ask" or input a command line for parametric and polar curves with other variables than x such as r, (theta), y etc? thank you

2 | retagged |

How do I "ask" or input a command line for parametric and polar curves with other variables than x such as r, (theta), y etc? thank you

3 | retagged |

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