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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-6073) Errors in trig function descriptions
Date Fri, 05 Jan 2018 06:30:02 GMT
Paul Rogers created DRILL-6073:

             Summary: Errors in trig function descriptions
                 Key: DRILL-6073
                 URL: https://issues.apache.org/jira/browse/DRILL-6073
             Project: Apache Drill
          Issue Type: Bug
          Components: Documentation
            Reporter: Paul Rogers
            Assignee: Bridget Bevens
            Priority: Minor

The documentation contains a [Math and Trig |http://drill.apache.org/docs/math-and-trig/]
page. Information about the trig functions are wrong.

{{asin\(x)}}, {{acos\(x)}}, {{atan\(x)}}: text: "Inverse sine/cosine/tangent of angle x in
radians". But, of course, an inverse function produces radians as output, and takes the sin/cos/tan
value as input. This, the value "x" is not an angle in radians, it is the sin/cos/tan value
to be inverted.

{{SINH()}}, {{COSH()}}, {{TANH()}}: these each take an input, but the placeholder "x" is not
shown, incorrectly suggesting that they take no argument.

List of functions: The list of non-trig functions earlier on the page is in the form of a
table. For symmetry, the list of trig functions should also be a table, not a bulleted list.

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