Question: special characters in Maple worksheet for Windows

Using Maple 10.05 with Windows XP Pro, how do I write a Maple command containing the _ character, without having it make a subscript? Specifically, there are some defined procedures whose names contain the _, such as geodesic_eqns(.....) in the tensor package. I've tried all kinds of key combinations, without success, to get that _ not to act as a subscript designator. Don Ritchie
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