4 = 81 AddFormula('xxxx','Val(x)*Val(x)*Val(x)*Val(x)');
AddFormula('xxxx','Val(x)*Val(x)*Val(x)*Val(x)');
4 = 81 AddFormula('y4','Math.pow( Val(y) , 4)');
AddFormula('y4','Math.pow( Val(y) , 4)');