You may have noticed that there is a comma in the middle of the TI and 84's buttons, and maybe even tried to use it before? Get the "Syntax Error" message before? Though we typically separate large numbers into chunks of three digits each, that is not what the comma was designed to do in calculators, and if you try to use it to do that, as shown to the right, your calculator gets confused. I often tell my students "You are smarter than your calculator" meaning -- it has no idea that commas are used in that way.
It thinks you're crazy. So, what is the comma there for then, if not to separate large numbers into chunks of three digits? Here's a handful of reasons the comma is useful, and things you can use it for: An argument separator: the most common use of a comma on a TI or TI is to separate different inputs of a function.
Lots of words here Try typing in gcd , 84 and you'll find that the calculator will give you the greatest common factor or divisor of and Notice because you had two inputs, you had to separate them with a comma. To enter the multiplicative inverse of a number, enter the number and press [x—1]. To insert the E into a calculation, press 2nd comma , The face of the calculator reads EE above the comma key, but only one E will appear on the screen for your scientific notation.
Can be used in either Normal or Sci mode. For example, a calculator would show the number 25 trillion as either 2. In other words, E or e is a short form for scientific notation. Exponents on the iPhone Calculator Using the exponent calculator function is the easiest way to get exponents on your iPhone. Scientific calculators have XY buttons to allow for functions that involve powers and exponents.
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