::: {.cell hash='02_R_introduction_cache/pdf/unnamed-chunk-69_22d1015a4d0593ec48a1971a19a2b0e9'}

```{.r .cell-code}
"ahahaha" & T
```

::: {.cell-output .cell-output-error}
```
Error in "ahahaha" & T: operations are possible only for numeric, logical or complex types
```
:::
:::