Self-tutoring about calculator maintenance: the tutor mentions some reassuring news. The scientific calculator I use is typically a Casio fx-260Solar. It’s robust, but reverse-entry, so not the most popular with people born after 1990. The forward-entry calculators here all seem …
Tutoring high school math, calculators are important. The tutor mentions the memory functions on the Sharp EL-510RN. Like some other functions, memory ones on calculators aren’t always intuitive to everyone. Sometimes it takes awhile to figure it out then get …
Calculator Usage: Storing and recalling values using the memory of the Sharp EL-510RN Read more »
Tutoring high school math, converting from degrees to radians comes up. The tutor mentions how to convert from degs to rads on the Sharp EL-510RN. With scientific calculators, converting from degrees to rads isn’t necessarily equally convenient from model to …
Calculator usage: the Sharp EL-510RN: degs to rads Read more »
Tutoring math, you see a lot of scientific calculators. The tutor mentions some general advice about using calculator memory. As a kid in high school, I used a reverse entry scientific calculator. It had memory (which was very useful) but …
Tutoring high school math, calculators are always interesting. The tutor mentions a new favourite: the Staples BD-6108 Scientific Calculator. Toggling between float (aka ‘normal’) display vs scientific notation, the Staples BD-6108 Scientific Calculator delivers. Let’s imagine you want to convert …
Tutoring high school math, scientific calculators are a permanent fascination. The tutor mentions a quirk many might share. Due to and the fact that a common exponent notation is xa=x^a, it follows that (-8)^(2/3)=4. Curiously, of all the calculators in …
Calculator usage: negative numbers to rational exponents (with odd roots) Read more »
Tutoring math, scientific calculators are always interesting. The tutor mentions changing between DEG and RAD mode on the Media SC-1000. The Media SC-1000 is an appealing scientific calculator. I’ve been using it often during my sessions lately, having bought one …
Calculator usage: changing angle mode on the Media SC-1000 Read more »
Tutoring math, calculators can always be interesting. The tutor shares a capability of the Nexus 4 on-board calculator. If the Nexus 4 on-board calculator has broad complex number capabilities, I don’t know about them. I tried √(-4) and got Not …
Calculator Usage: Euler’s identity with the Nexus 4’s on-board scientific Read more »
Tutoring math, you notice the peculiarities of scientific calculators. The tutor brings up one about the Casio fx-991ES PLUS C. If you enter the operation 14รท9 into the Casio fx-991ES PLUS C, you’ll just as likely see 14/9 on the …
Math: How to convert between fraction and decimal on the Casio fx-991ES PLUS C Read more »
Tutoring math, you come to appreciate calculators. The tutor points out an interesting feature on the Casio fx-991ES PLUS C. Typically, the log key on a calculator means “base 10 log”, aka “common log.” What about base 7 log, for …
Calculator usage, math: logs in variable bases with the Casio fx-991ES PLUS C Read more »