Board Thread:Support Requests - Getting Technical/@comment-1357348-20180625234154/@comment-9605025-20180626171042

First, I suggest you read-up on the proper syntax for the parser function. The section linked to in my previous response gives some examples but a more detailed description of the syntax can be found under the description for #expr. Second, I think you are getting those errors because "Power_P" has not been assigned a value. For more information, you can read Help:Template parameters. In short, when a parameter hasn't been given a value, the parameter's placeholder is used as a literal string instead. To get around this, you need to provide the parameter with a default value. For example, this is what you had (with the output changed for demonstration purposes):

Result:

Adding a default value:

Result:

Correcting syntax:

Result:

Correcting what I think is an incorrect operator:

Result: