When calculating an expression, an error is reported if the expression has [] in it.

[landonzeng]

Error in calculation of (-CWPT_007_P)+[1-(-0.3)]: Expression expected (at index 14).

[davideicardi]

Can you post some actual text code to reproduce the problem?

[metoule]

You're using brackets as parenthesis, which is not supported:

(-23)+[1-(-0.3)]

should be

(-23)+(1-(-0.3))