scaling artifact on ipad2

[marick]

1. When viewing the image in section 11.4 in iBooks on an iPad 2, the "The FUNCTION +" unfortunately looks like "The FUNCTION -", which could be confusing. I see that it is correct in the PDF, so it must be a scaling artifact when reducing the size to fit on the screen.

I'll check if that happens on an iPad 1. If so, I'll see if I can fiddle around with the size of the source .png, but that'll happen later.

[robermann]

Just checked on iPad 1: I see "FUNCTION +". (Tested on both versions: "fastidious flounder" and "garrulous gastropod", where it is in section 10.4)