Bardic Knowledge: Rounded up or Down?

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Bardic Knowledge says: "Bardic Knowledge (Ex): A bard adds half his class level (minimum 1) to all Knowledge skill checks and may make all Knowledge skill checks untrained."

Are fractions rounded up or down? It is written anywhere one way or another? For instance, does a level 3 bard have +1 Bardic Knowledge or +2 Bardic Knowledge?

Thanks so much if you can shed light on this! If you have a definitive answer I'd love also to know where to find it in the rules myself!

[Tar-Tar]

SRD wrote:

Rounding

Occasionally the rules ask you to round a result or value. Unless otherwise stated, always round down. For example, if you are asked to take half of 7, the result would be 3.

Link to where you can find the rule.

[Gauss]

In case you want an official reference (which D20PFSRD is not), Tar-Tar's quote can also be found on page 12 of the CRB.

- Gauss

[Ciaran Barnes]

All values round down in this system, unless specified otherwise.

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You guys are awesome. That will be easy to remember, too!