Tutoring math, calculator usage is of constant importance. The tutor shows how to get the greatest common divisor on the Casio fx-991ES PLUS C. Example: Find the GCD of 96 and 60. Solution: Key in ALPHA x 96 , 60 …
Tutoring math or computer science, random numbers are often involved. The tutor shows the convenient random integer generator on the Casio fx-991ES PLUS C. Example: Generate a random integer between 10 and 89 using the Casio fx-991ES PLUS C. Solution: …
Calculator usage: how to use the random integer generator on the Casio fx-991ES PLUS C Read more »
Tutoring physics, you face unit conversions. The tutor shows how the Casio fx-991ES PLUS C can be used. Inside the cover of the Casio fx-991ES PLUS C, at the bottom, is a list of unit conversions. Specifically, it indexes each …
Calculator usage: horsepower to kilowatts on the Casio fx-991ES PLUS C Read more »
Tutoring math, I’m impressed with the functions available on scientific calculators. The tutor shows the division and remainder function on the fantastic Casio fx-991ES PLUS C. Example: On the Casio fx-991ES PLUS C, find the quotient and remainder of 324 …
Calculator usage: division and remainder calculations with the Casio fx-991ES PLUS C Read more »
Tutoring statistics, you cover linear regression. The tutor shows how to get a best-fit line on the Casio fx-991ES PLUS C. Let’s imagine you have the following data x y 10.1 14.2 17.3 19.5 25.4 22.9 40.0 31.8 Furthermore, you’d …
Calculator usage: linear regression on the Casio fx-991ES PLUS C Read more »
Tutoring high school math, the prime factorization is a topic. The tutor shows the convenient prime factorization function on the Casio fx-991ES PLUS C. Example: using the Casio fx-991ES PLUS C, find the prime factorization of 225. Solution: Make sure …
Calculator usage: how to get the prime factorization on the Casio fx-991ES PLUS C Read more »
Tutoring statistics, you see lots of great calculators. The tutor shows how to calculate one-var standard deviation on the Casio fx-991ES PLUS C. Let’s imagine you want the standard deviation of the short list of numbers 23, -12, 0, 15, …
Statistics: how to calculate standard deviation with the Casio fx-991ES PLUS C Read more »
Tutoring high school math, you might use the TI-83 Plus. The tutor shares his finding about an error message he recently saw. The other day, when trying to graph a function, the error message ERR: INVALID DIM appeared. From what …
Err: Invalid Dim on Ti-83 Plus: What causes it, and how can you get rid of it? Read more »
The tutor tells how to access the built-in εο constant on the Sharp el-520w. The Sharp el-520w has 52 built-in constants relating to physics, chemistry, etc. Here’s how to call up εο, which has value 8.85×10-12: Press the CNST key, …
Calculator usage, physics: εο: permittivity of free space constant on the Sharp el-520w Read more »
The tutor gives an example of how to use the TI-83 Plus to get results from the t-distribution. Let’s imagine the following situation: Sample size: 25 Sample mean: 14.4 Sample standard deviation: 3.3 Estimate the percent of the population between …
Statistics: using t-statistics on the TI-83 Plus Read more »