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  1. #1
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    Sin Squared (2003)

    Is sin^2(a) the same as (sin(a))^2

    where ^2 denotes squared. I have an equation I am trying to plot that is sin^2(a) and am unsure how to notate it, is it simply =POWER(SIN(A2),2) <img src=/S/shrug.gif border=0 alt=shrug width=39 height=15>
    Jerry

  2. #2
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    Re: Sin Squared (2003)

    Yes, mathematicians use sinē x as a shorthand notation of the square of sin x

    The Excel notation would be =(SIN(A2))^2 or =POWER(SIN(A2),2)

    Keep in mind that the trig functions in Excel take radians as argument. If A2 is in degrees, you have to multiply with PI()/180 to convert to radians: =(SIN(A2*PI()/180))^2

  3. #3
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    Re: Sin Squared (2003)

    Cheers Hans, I have the radians conversion already sorted in column A <img src=/S/grin.gif border=0 alt=grin width=15 height=15>

    I have a tendency to use =(ROW()*PI())/180 and copy down when using circular functions, same thing just another method <img src=/S/evilgrin.gif border=0 alt=evilgrin width=15 height=15>
    Jerry

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