| javascript Programming Glossary: tformula.replaceJavascript: Regular Expression to parse a formula http://stackoverflow.com/questions/18459798/javascript-regular-expression-to-parse-a-formula  var i 0 i f.length i  tFormula f i  Replacing PI tFormula tFormula.replace pi gi Math.PI dObj._1_pi_done tFormula  Replacing Squareroot.. tFormula  Replacing Squareroot with placeholder tFormula tFormula.replace sqrt gi __sqrt__  tFormula tFormula.replace sqr gi __sqrt__.. tFormula tFormula.replace sqrt gi __sqrt__  tFormula tFormula.replace sqr gi __sqrt__  tFormula tFormula.replace kvrt gi __sqrt__.. 
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