This page shows how to process basic calculations.
To evaluate an expression, simply write it as one line of text:
It is possible to use spaces in the expression, they do not have an effect on evaluating:
5 + 2
You can use more operations in one expression. The operators are evaluated according to the standard mathematical priority.
5 * 2 - 3 + 6 / 4
To change the evaluation priority, it is posible to use unlimited number of parenthesis:
5 * ( ( 2 - 3 ) + 6 / 4 )
Powers can be written into one line using the symbol ^. For instance 5² would be:
5 ^ 2
Writing roots is a litle bit harder. The ^ symbol is used here as well, but the second operand must be written as the inverse value of the exponent. For instance, √5 would be:
5 ^ (1/2)
The main form contains buttons for inserting roots, which will fill in the important characters, so it is easier and more convenient to insert roots. The buttons are [x²], [x³] and [xy]. The exponent can also be written as a decimal number, so √5 can also be written like this:
5 ^ 0.5