Happy e Day. What is e?
How many would say it is the irrational number e also known Euler’s number. I suspect that even many students would say that “e” is the scientific notation letter as in 1.3e4 = 1.3 x 10 4. Sadly, students still sometimes write scientific notation on ...
The Infinite Variety of Wrong Answers
The calculation in question involved multiplying three numbers that were in scientific notation, and dividing by the product of two other numbers in scientific notation, which is how he ended up with all his answers off by a factor of 10…) The infinite ...
The Golden Rules Of Error Analysis
One would think that any undergraduate in any scientific field knows the basics ... INSIST on the plus/minus notation. It forces people to think one tiny step further. I explained such many times. I realize now that my efforts back-fired.
What is Y2K? Y2K is a nickname for Year Two Kilos (kilos are thousands in scientific notation). Y2K is the date 2000, when computer operating systems and programs with dates in their codes are likely to malfunction. Why is the year 2000 a problem for ...
How do you represent vectors?
At that time, I had to stop and recall how I had been representing vectors. Ideally, I should stick with the same notation I used in Basics: Vectors and Vector Addition. But let me go over the different ways you could represent a vector. Maybe this is too ...