TI58C, the programmable calculator!

Links

To evaluate and compare the different programmable calculators, I wrote small test programs applied to each of them.

"Forensics" test

The "forensics" algorithm was invented by Mike Sebastian to quickly provide a comparison of the accuracy of scientific calculators.
It is a matter of applying the following calculation and observing the result obtained:
arcsin(arccos(arctan(tan(cos(sin(9))))))

(See "Calculator Forensics" by Mike Sebastian)

But... the precision of the calculation (number of decimal places after the decimal point) will influence the final result...

:"Forensics" programs :

Factorial test

Even for calculators with a "factorial" function, programs have been written to be able to compare these calculators with others.

"Factorial" programs :

Stirling's formula

The formula of Stirling allows to approximate the factorial of a number.

"Stirling" programs :

"Fibonacci" test

Finding the Fibonacci number of rank n.

"Fibonacci" programs :

Binet's formula

The formula of Binet provides the n-th term of the Fibonacci sequence.

"Binet" programs :

The circle

Which program could apply to all programmable calculators ?

"Circle" programs :

Greatest Common Divisor

One of the classic small programs of calculator programming...

"GCD" programs :

Birthday paradox

The Birthday Paradox calculates the percentage chance of finding 2 people with the same birthday (not necessarily born in the same year) in a group of n people.

"Birthday" programs :

Ramanujan's formula

The Ramanujan formula allows to calculate the factorial of a number.

"Ramanujan" programs :

Some programmers, accustomed to programmable calculators for which I have written programs, may be surprised by my programming style.

For all the calculators in my collection, apart from the ones I knew perfectly like the TI58C, I took it as a constraint not to use any documentation for getting started with the machine and programming it.

It was very easy for some machines but rather laborious for others, but I got through it without violating the rule I had set myself.

Paradox when I want to have for each machine its documentation as complete as possible... but I do not prohibit myself, when the calculator is "mastered", to read the manuals or different books as others would read novels.

Better support with Firefox, SeaMonkey, Opera, Google Chrome
Use of JavaScript
Screen 1024x768 - colors 16 bit or more

Last update on 11 May 2024