Float (Optional) data type | |
Either a Float number (ie not an integer), or the variable can be omitted. If the value is a string, the function will attempt to convert it to a number, using the part of the string from the start to the first non-numeric character (ie not one of 0123456789+-*/^). | |
This is a Float data type that is optional, in other words you can miss it out completely in a function. Usually there are defaults for this kind of input. A string can be converted to a number: see Conversion of Input Strings to Values |