Your Pocket Scientific Calculator
Contents and Index
- The Keys
Pictures of a Casio fx-85 calculator (the same as a Casio fx-83 calculator but dual-powered) where you can click on a key to find out what it does. I do suggest however that if you have not yet read the Introduction to these Pages you do so now, before you look at the pictures.
- Introduction
About these Pages. You will miss a lot if you do not read this.
- Getting started
Essential reading if you are
- Adding, subtracting, multiplying and dividing
Not quite as straightforward as you might think
- Powers, roots, pi and reciprocals
About squares, cubes and other powers, roots, π and other irrational numbers.
- Accuracy and ways of displaying your answer
About accuracy, and using the SD key, fixed point and standard and scientific form.
- Using Memories
About your calculator's memories and how to use them, and including about how to carry out trial and improvement calculations with them.
- Finding prime factors
About how to use the FACT key to find the prime factors of a number
- Sexagesima
About working with hours (or degrees) minutes and seconds.
- Working with angles and hyperbolic functions
About working with angles in degrees, radians and gradients, and trigonometrical and hyperbolic functions.
- Cartesian (rectangular) and polar co-ordinates
How to convert between rectangular and polar co-ordinates
- Factorials, permutations and combinations
About finding factorials, permutations and combinations
- Logarithms and powers of 10 and e
About natural, common and other logarithms, and powers of 10 and e.
- Absolute Value
About how to find the absolute value of a number or expression
- Random numbers
How to generate a random number or a list of random numbers for use in statistics or games etc.
- The verify key
How to use your calculator to verify whether a statement is TRUE or FALSE
- The top line of the display
A description of what the very tiny characters at the very top of the display mean
- Error messages and nerd stuff
About error messages, errors, warnings, limitations, internal accuracy, faults, and other technical stuff
© Barry Gray June 2014