A major re-design is definitely in order. Time to dust off the cobwebs and re-launch the site in 2017.
But in the interim, something to think about ...
WHY YOU CAN GIVE ONE EQUATION TO 6 DIFFERENT
PEOPLE AND GET 6 DIFFERENT ANSWERS.
The rules aren't new … they've been around since the early 1600’s.
PEDMAS (or BEDMAS or BODMAS or BIDMAS - all the same thing)
When working with multiplication and division, you do whichever comes
first as you work from left to right. If multiplication comes
first, do it before dividing. The same holds true for addition and
subtraction. When the subtraction comes first, subtract before
you add. Remember - you are working left to right and you will
perform the operation that comes first. Multiplication and
Division are treated equally. Addition and Subtraction are treated
equally. You are working left to right, which is your main
3. Division OR Multiplication. Multiply & divide in the order the operations occur, left to right.
4. Addition OR Subtraction. Add & subtract in the order the operations occur, left to right.
But then, to complicate matters, different
calculators follow different orders of operations, yielding different
results. Simple calculators use the chain calculation mode,
working left to right without any priority assigned to different
1 + 2 × 3 = 9
while more sophisticated calculators use the standard priority, giving:
1 + 2 × 3 = 7
So good luck on EVER getting a consensus on a math
equation. Doesn't elicit much confidence when it comes to relying
on math for things like, oh say, calculating jet fuel requirements, or
construction materials for mega-story buildings. And maybe that
accounts for some of the really annoying software problems we all
encounter, because some programming languages use precedence levels,
while others use strictly left to right.
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