Now on another topic, I received this report via email today: "Unraveling the Thermocouple Approximation Error Using the Least Squares Method." I'll read it, but only after I brush up on the least squares method a bit. It has been a few years since I did any regression analysis work, after all and I may be nearing the expiration date on that plus the thermocouple approximation error.
Talk about a blast from the past!!!!
Who the heck e-mails you stuff like that? Sounds like trying to solve matrices when in college. They tried to tell me I'd need them down the road. They were completely wrong on that.
There are tools for curve fitting, etc. that make it so you don't have to understand the background, just trust the tool, and know enough to tell you that the output is garbage for some reason (usually because you put the wrong info into it.)
I was helping a friend with sheetrock a while back, and he kept figuring out how much to cut off a sheet by subtracting the length needed from the sheet length. He did screw up a couple of his calculations. I just threw the tape on the sheet and marked it at the right spot. Sometimes, simple is best.