Arithmetic expression to double conversion

I am having a string column in which i am having arithmetic expression values like “10+20-10”,
After this I am trying to use math formula node but it is not taking string column as an input.How can i achieve this??

The Math Formula node operates on the numerical values in cells a row An arithmetic expression is by definition not a double-precision floating-point number. They cannot be inter-converted.

If you want to evaluate the expression 10+20-10 using the Math Formula node, one way is to convert the string to a flow variable, and then tell the Math Formula node to use that flow variable as the Expression

See here for an example:


Thank u…it workd for me

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