Transient Formula looks to be in good working order. That is, the roots appear correct compared to matlab generated results from a published paper.

The thermal conductivity and other turkey identifiers may need adjustment, but the model works ok as long as the times we input are not too low. Better for longer DeltaTs

js/CookingFormula.js

@@ -5,7 +5,7 @@
 //Global Variables for Turkey
 density = 996; // kg/m3 Assuming Density of Water 1000 kg/m3
 cp = 2810 // J/kg K for Turkey
-heatConvection = 12; // W/m2 K Some Reasonable estimate for natural Convection. Change as needed. 5-25
+heatConvection = 5; // W/m2 K Some Reasonable estimate for natural Convection. Change as needed. 5-25
 thermalConduct = 0.412 // W/m K
 
 function celsiusToFarenheit(celsius) {
@@ -179,12 +179,12 @@ for (var i = 0; i < length; ++i )
 }
 	
 function bisectionMethod(min,max,Biot) {
-errorTolerance = (1/Math.pow(10,9))
+errorTolerance = (1/Math.pow(10,10))
 result = Infinity // some large value to ensure the calculation goes through.
 negativeTest =lambdaFormula(min, Biot)*lambdaFormula(max, Biot)
 	if (negativeTest <=0 ) {
 		var antiFreeze=0;
-		while (Math.abs(result) > errorTolerance && antiFreeze<=10000) {	
+		while (Math.abs(result) > errorTolerance && antiFreeze<=100000) {	
 			lambdaN = (min+max)/2
 			result=lambdaFormula(lambdaN, Biot)
 			if (Math.abs(result) <= errorTolerance && result<=errorTolerance) {
@@ -217,7 +217,10 @@ console.log("Fourier is " +  Fourier)
 biotNum = heatConvection * rTotal/thermalConduct
 console.log("The Biot Value is " + biotNum)
 
-lambdaTerms = findAllRoots(biotNum)
+min = 0;
+max = 250;
+
+lambdaTerms=findAllRootsAlternative (min,max,max*1000,biotNum)
 	for (var i = 0; i<lambdaTerms.length; i++) {
 		lambdaN = lambdaTerms[i]
 
@@ -227,7 +230,7 @@ lambdaTerms = findAllRoots(biotNum)
 		sum = frontCoefficientPortion*exponentialPortion*sinPortion + sum
 }
 tempAtTimeAndRadius=(sum*(tempInitial-tempInfini))+tempInfini
-return(tempAtTimeAndRadius)
 console.log("The Temperature at radius " + rPosition + " m and time " + t + "  seconds is " + tempAtTimeAndRadius + " C or " + celsiusToFarenheit(tempAtTimeAndRadius) + " F");
+return(tempAtTimeAndRadius)
 }