Square root

[kartano]

We need a system for handling square roots. √2 for example.

The main issue with √ is with determining what portion of the expression it is trying to squre.

If we have 5 * √2a for example, are we taking the sqaure of 2 * a? Or the square of 2, multiplied by a?

I'm suggesting using a specific command such as sqrt() to handle this. So the tokenizer should consume the sqrt and handle the entire sub-expression before continuing on with the rest of the equation.

I.E:

5 * 2 +8 / sqrt(144*2) + 5

.... the tokenizer should push the sqrt open brack onto the operator stack, carry out the equation until it comes to a closing bracket. Then it should continue on with the remainder of the equation.

This would also allow for nested square roots.

17.5-8+16a+sqrt(144sqrt(144))*18/5.5