Esempio: curve parametriche nei grafici 2D

Grafici > Grafici polari > Esempio: curve parametriche nei grafici 2D

Tracciare il grafico dei punti di una curva le cui coordinate sono funzioni di uno o più parametri.

Un parametro

1. Utilizzare la funzione sin per definire le funzioni x e y in termini di parametro a:

2. Tracciare un grafico di y in funzione di x. Per le curve parametriche, vengono tracciati 500 punti in un intervallo determinato da un algoritmo. Quando si modifica il numero di punti tracciati, l'intervallo viene modificato di conseguenza.

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Due parametri

1. Impostare il numero di punti dati.

2. Definire l'angolo e il raggio in corrispondenza di ogni punto dati.

3. Definire i vettori delle coordinate con parametri.

4. Utilizzare la funzione augment per registrare in una matrice i valori indicati in precedenza, in modo da poterli riutilizzare, o scriverli in un file esterno per altre applicazioni.

5. Utilizzare la funzione stack per aggiungere titoli alla matrice.

6. Tracciare un grafico di y in funzione di x. È possibile modificare i punti tracciati modificando la definizione della variabile con intervallo i.

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7. Mostrare la curva precedente come grafico polare (non parametrico).

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