3

Bear with me, I'm a noob; I simply want to create a radio button bar that selects whether I want to add or subtract two numbers:

```
{RadioButtonBar[Dynamic[stringvar], {"*" -> "Multiply Numbers", "+" -> "Add Numbers"}]}
```

And my equation might simply be:

```
2 + 2
```

And I just want to change the + to a * interactively. Not sure if this is the right way to do it. Thanks.

3Create a Dynamic variable that is the

`Head`

of an expression, and can take the values`Plus`

or`Times`

– Verbeia – 2013-04-19T14:02:29.773