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FromString

 Method with 2 overloads

• FromString​(System.​String,​System.​Boolean)

  Summary

  Converts a String to an expression

  Parameter "expr"

  String expression, for example,

  "2 * x + 3 + sqrt(x)"

  Parameter "useCache"

  By default is true, it boosts performance if you have multiple uses of the same string,
  for example,
  Entity expr = (Entity)"+oo" + "x".Limit("x", "+oo") * "+oo";
  First occurance will be parsed, others will be replaced with the cached entity
  

  Returns

  The parsed expression

  Example

  Multiple ways to parse an expression.
  

  Entity expr1 = "a + b";
  var expr2 = FromString("a + b");
  var expr3 = FromString("a + b", useCache: false);
  var expr4 = (Entity)"a + b";
  var expr5 = Parse("a + b").Switch(
      res => res,
      failure => failure.Reason.Switch<object>(
          unknown => throw new("Unknown reason"),
          missingOp => throw new("Missing operator"),
          internalError => throw new("Internal error") 
      )
  );

• FromString​(System.​String)

  Summary

  Converts a String to an expression

  Parameter "expr"

  String expression, for example,

  "2 * x + 3 + sqrt(x)"

  Returns

  The parsed expression

  Example

  Multiple ways to parse an expression.
  

  Entity expr1 = "a + b";
  var expr2 = FromString("a + b");
  var expr3 = FromString("a + b", useCache: false);
  var expr4 = (Entity)"a + b";
  var expr5 = Parse("a + b").Switch(
      res => res,
      failure => failure.Reason.Switch<object>(
          unknown => throw new("Unknown reason"),
          missingOp => throw new("Missing operator"),
          internalError => throw new("Internal error") 
      )
  );