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    Re: Quicker Ex-Meridian Formula for Slide Rule or Calculator
    From: Gary LaPook
    Date: 2016 Dec 5, 01:51 -0800

    OK, I understand the MX gauge point but what are the S1 and the P scales used for?

    gl

    -------------------------------------------------------------------------------------------

    Here is a link to the Blundell slide rule with the XM mark. I just might have to get one of these.

    http://sliderulemuseum.com/British/Blundell_Harling_SuperDuplexA504_ScanBySteveSealeCollection.jpg

    Greg Rudzinski

    gl

       
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