1 | initial version |

Do you mean you are considering the function `f(x, y, z) = 0.3*x + 0.7*y + 0.2*z`

and you have a list `ver`

of 3-tuples and you want the list of `f(x, y, z)`

for each
`(x, y, z)`

in the list `ver`

?

Define `f`

and `ver`

:

```
sage: f = lambda x, y, z: 0.3*x + 0.7*y + 0.2*z
sage: ver = [ (0.00, 0.50, 0.75), (0.00, −0.50, 0.75), (0.50, 0.75, 0.00), (0.50, −0.75, 0.00)]
```

Several ways to compute the image:

```
sage: w = [f(x, y, z) for x, y, z in ver]
sage: w = [f(*v) for v in ver]
```

Or using vectors instead of tuples, and seeing `f(x, y, z)`

as a scalar product:

```
sage: a = vector((0.3, 0.7, 0.2))
sage: w = [a * vector(v) for v in ver]
```

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