# String Interpolation

While it's possible to run macros in a formula, it was impossible to combine string and macro results together without putting macro results into a variable first.

For example:

`2 plus 2 equals sum(2,2)`

Would not evaluate and throw an error instead.

A quick workaround to this would be to place the result of `sum(2, 2)`

into a separate variable and reference that variable instead.

Such excess work can now be avoided by surrounding macros with curly braces `{}`

:

`2 plus 2 equals {sum(2,2)}`

This will safely evaluate to:

`2 plus 2 equals 4`