Brilliant! You obviously scored high on the SAT test--in the pre-(Korean) War time, when X was 3 and Z was a great unknown held in high esteem. That was long before the days of 3S Mama and the Big Daddy. Gollies, it's hot here today. Maybe I have sunstroke.
I had a math class with a Polish calculator about eight years ago. So much stuff are in those things. I knew I had flunked all the percentages and amortization things, but I passed with an 84. LOL! Polish calculators are much easier for me to use.