The inputs above will be hidden when the program finally gets launched. Currently, I am not hiding them even when you close the calculator. The purpose of the inputs is to help in debugging. This allows you to enter simple code on the calculator screen but the program translates the input to javascript math. Give it a try and see if you notice any obvious problems or have suggestions for improvements.
The javascript math object methods used for this calculator are not accurate for very large or very small numbers. In particular, the trigonometric functions may yield very small answers that should actually be zero or very large answers that should be infinite. This typically occurs at 90° or pi/2 intervals.
DO NOT USE WHERE HIGH PRECISION IS REQUIRED. USE AT YOUR OWN RISK.
Synthetic division is a simple way of doing polynomial division. Set up the coefficients of your polynomial from highest degree to lowest, including your constant, if any. If any degree is missing you must enter zero as the coefficient.
The root of the divisor is placed in front of the coefficients as shown in the example below. Watch the demo to see how the term on line 3 is multiplied by the possible root with the result going to line 2, adding terms and then repeating the process. If the remainder of this computation ends up being zero, then you have found a root.
Example 1: (2x³ + 3x² +2x +1) / (x + 1)
Note: -1 is the root of the divisor.
Division Setup: -1 | 2 3 2 1 -2 -1 -1 2 1 1 | 0
The quotient is 2x² +
x + 1 with a remainder of zero. Therefore, -1 is a root and (x+1) is a factor.
