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+1  Q: 

Is there any PHP or JavaScript math expression formatters (which adds brackets) ?

Google Calculator formats math expressions this way:

2+2/2 ---> 2 + (2 / 2)
2+2/2*PI ---> 2 + ((2 / 2) * PI)

In others words - it adds brackets. Is there any similar PHP or JavaScript solutions to do the same thing?

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