Precedence rules: BEDMAS and order of operation

[JoePelz]

Parentheses are observed but otherwise order of operations is right to left.
Therefor:

a = 3+3*3+3
b = (3+3)*3+3

result in:

a == 21
b == 36

Expected result:

a = 15
b = 21

[JoePelz]

a side effect is that the following code doesn't work:

print "cube root 27 = " + 27.0^^(1/3.0)

The above code attempts to raise a String to the power of 1/3.
It can be fixed with parentheses as follows:

print "cube root 27 = " + (27.0^^(1/3.0))

[JoePelz]

can be easily fixed by splitting the MATHOP token into precedence groups, and defining precedence.
e.g.

• +, -
• *, /
• ^^