HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

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This Legacy journal article was published in Volume 4, February 1994, and has not been updated since publication. Please use the search facility above to find regularly-updated information about this topic elsewhere on the HEASARC site.

Table 4

Characters & strings allowed within OGIP datasets to denote mathematical operations

              String     Meaning

                str1 * str2   Multiplication (see also Section 3.1.1)
                str1 /str2    Division (see also Section 3.1.2)
                str1**(y)     Raised to the power y (see also Section 3.1.3)
                log(str1)     Common Logarithm (to base 10)
                ln(str1)      Natural Logarithm
                exp(str1)     Exponential (expstr1>
                sqrt(str1)    Square root
                sin(str1)     Sine
                cos(str1)     Cosine
                tan(str1)     Tangent
                asin(str1)    Arc Sine
                acos(str1)    ArcCosine
                atan(str1)    Arc Tangent
                sinh(str1)    Hyperbolic Sine
                cosh(str1)    Hyperbolic Cosine
                tanh(str1)    Hyperbolic Tangent

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Last modified: Monday, 19-Jun-2006 11:40:52 EDT

HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.