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Best answer by StuartBruff

The |..| operator was set to 'matrix determinant' not 'absolute value' (look up in help, usually right-click and select, but in this case I had to cut the long expression in the second equation, substitute a dummy variable, set | | to abs and then paste the original value back in.

Stuart

3 replies

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StuartBruff23-Emerald VAnswer
23-Emerald V
September 11, 2012

The |..| operator was set to 'matrix determinant' not 'absolute value' (look up in help, usually right-click and select, but in this case I had to cut the long expression in the second equation, substitute a dummy variable, set | | to abs and then paste the original value back in.

Stuart

    J
    jjjjvb1-VisitorAuthor
    1-Visitor
    September 11, 2012

    thank you for fast answer.

    Is there any other way to avoid divide by zero in denominator exclude subtraction from sine infinity small value?

    S
    StuartBruff(Wor1-Visitor
    1-Visitor
    September 11, 2012

    jvm jjjvb wrote:

    thank you for fast answer.

    Is there any other way to avoid divide by zero in denominator exclude subtraction from sine infinity small value?

    No worries.

    Is there any other way to avoid divide by zero in denominator exclude subtraction from sine infinity small value?

    Yes. Examination of the equation reveals that there is a simplification at Fd = 0. The easy way to deal with it is to move the expression into a function and handle Fd=0 as a special case.

    Stuart

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