data validation

Infopath 2010 validation woes

While working on an Infopath 2010 form to be used in one of the SharePoint 2010 sites, I came across two challenges. End users will enter a number in a field, where values between 0 and 100 are allowed, in increments of 0.5. For example 11 or 22.5 or 65.0 are OK, but not 0.3 [...]