[MACRO] Trying to determine number of dice to roll from math

So I have a macro where I don't want to have to update the number of dice it rolls as my character levels. I have the math figured out, it goes:

[[ ceil(@{Character|level}/2) ]]

This returns correctly. If I try to use it to determine the number of dice to roll:

[[ ceil(@{Character|level}/2) d6 +1 ]]
or
/r ceil(@{Character|level}/2) d6 +1

It fails. I'm using the syntax from the Dice Reference under Computed Dice Roll correctly as far as I can see, but it returns:

Could not determine result type of: [{"type":"M","expr":"ceil(4/2)"},{"type":"C","text":"d6 +1 "}]

Can anyone show me what I'm doing wrong? TIA.

It's not possible due to the order of operations - https://wiki.roll20.net/Dice_Reference#Order_of_Operations

Edit : /r (2+2)d6 would work but /r (ceil(2+2))d6 does not

: /

Try [[(@{Character|level}/2+0.4)d6+1]]

Ooo does the system just ignore the decimal fraction if you attempt to roll something like 2.35 d6......iiiiinteresting :)

/me puts chisel down and backs away from the dice bag slowly

I guess I was just expecting it would bomb out instead of applying round to it....good to know...thanks! :)

@Brian: Thanks very much, that works like a charm.