1 | initial version |

The range of `x`

values where you want the plot should look like `(x, 0, 10)`

instead of `x, 0, 10`

.

The following works for me:

```
sage: a = 0.5
sage: x, t = SR.var('x t')
sage: plot(integrate(cos(x*t), t, 0, sin(a)), (x, 0, 10))
```

Or you can use a Python function rather than a Sage symbolic function, and describe the range as `(0, 10)`

.

```
sage: plot(lambda x: integrate(cos(x*t), t, 0, sin(a)), (0, 10))
```

The syntax `lambda x: expression involving x`

is the Python equivalent of the mathematical notation
$x \mapsto \text{expression involving } x$.

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