How to convert user formular into Qt script

[lni]

Hello,

How can I convert user input formular into Qt script. so it can be evaluated by QtScript engine.

For instance, when user type into

VAR1 / VAR2 * 35.4 * Math.min( Math.power( VAR3 / VAR4, 0.3 ) ) * Math.max( VAR4 )

Where VAR1, VAR2, VAR3, and VAR4 are known arrays with same length, such that VAR[ i ], i = 0, 1, ...., n

I need to convert to:

function calcMin1()
{
  var val = Math.power( VAR3[ 0 ] / VAR4[ 0 ], 0.3 );
  for ( var idx = 1; idx < VAR3.length; idx++ ) {
    val = Math.min( Math.power( VAR3[ idx ] / VAR4[ idx ], 0.3 ), val );
  }
  return val;
}
 
function calcMax1()
{
  var val = VAR4[ 0 ];
  for ( var idx = 1; idx < VAR4.length; idx++ ) {
    val = Math.max( VAR4[ idx ], val );
  }
  return val;
}
 
var min1 = calcMin1();
var max1 = calcMax1();
 
var result = new Array; 
for ( var idx = 0; idx < VAR1.length; idx++ ) { 
  result[ idx ] = VAR1[idx] / VAR2[idx] * 35.4 * min1 * max1;
}

function calcMin1()
{
  var val = Math.power( VAR3[ 0 ] / VAR4[ 0 ], 0.3 );
  for ( var idx = 1; idx < VAR3.length; idx++ ) {
    val = Math.min( Math.power( VAR3[ idx ] / VAR4[ idx ], 0.3 ), val );
  }
  return val;
}

function calcMax1()
{
  var val = VAR4[ 0 ];
  for ( var idx = 1; idx < VAR4.length; idx++ ) {
    val = Math.max( VAR4[ idx ], val );
  }
  return val;
}

var min1 = calcMin1();
var max1 = calcMax1();

var result = new Array; 
for ( var idx = 0; idx < VAR1.length; idx++ ) { 
  result[ idx ] = VAR1[idx] / VAR2[idx] * 35.4 * min1 * max1;
}

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