Jeeeeez...Again, once more...that's not something APPLE wants to make, as long as iPad does not support a Mac-like user experience.
If an iPad owner is OK with a giant full-screen calculator, no worries. Simply get one from the App Store and find happiness. I suspect there are many.
"Also as stated in the article, they flat out say if you want one go buy one of the many on the App Store. Hmmmm how odd that there is market for something you have deemed useless."
Wrong again. I have not deemed it useless. As shown up above with a photo, I have pCalc on my iPad and occasionally use it, as clunky as it is measuring 8"x10".
Again, this is APPLE'S DECISION, not mine. I'm simply explaining the reasoning.