Inconsistent units warnings

You can specify a customer default so that the software issues a warning message when it encounters the following situations:

• You are opening a simulation that contains an expression with a mathematical function in its formula, and the units of the arguments for the mathematical function are inconsistent, or you are opening a simulation that contains the ABS (absolute value) function.The warning message is listed in an information window that appears when you open the simulation.

• You are creating an expression with a mathematical function in its formula, and the units of the arguments for the mathematical function are inconsistent, or you are creating an expression that contains the ABS (absolute value) function.The warning message appears when you create the formula for the expression.

The units of an argument of a mathematical function are inconsistent when:

• The dimensions of the units of all the arguments for a mathematical function with multiple arguments differ.The mathematical functions with multiple arguments for which the software can issue a warning message are the ATANGENT2(v1/v2), AVG(v1,v2,v3,......), MAX(v1,v2,v3,......), MIN(v1,v2,v3,…...), and MINIMUM(v1,v2,v3,......) functions.For example, because all of the arguments have the same dimensionality, the arguments in the following formula are consistent:MAX(5[mm],0.001[km],50[in])The arguments of the following formula are inconsistent because all of the arguments do not have the same dimensionality:MAX(5[mm],0.001[N],50[in])

• The argument for a trigonometric mathematical function is dimensional and the units are not radians or degrees.The trigonometric mathematical functions for which the software can issue a warning message are the COS(v), SIN(v), and TAN(v) functions.For example, the following formulas are consistent:SIN(5[radians])SIN(5[degrees])SIN(5[m]/1[m])SIN(5)The following formula is inconsistent because the argument is not an angular measure.SIN(5[mm])

• The argument for an inverse trigonometric mathematical function is dimensional.The inverse trigonometric mathematical functions for which the software can issue a warning message are the ACOSINE(v), ASINE(v), and ATANGENT(v) functions.For example, the following formulas are consistent:ASIN(0.5[m]/1[m])ASIN(0.5)The following formula is inconsistent because the argument is dimensional.ASIN(0.5[mm])

• The argument for a hyperbolic mathematical function is dimensional and the units are not radians or degrees, or the argument is dimensionless.The hyperbolic mathematical functions for which the software can issue a warning message are the HYPCOS(v), HYPSIN(v), and HYPTAN(v) functions.For example, the following formulas are consistent:HYPSIN(5[radians])HYPSIN(5[degrees])The following formula is inconsistent because the argument is not an angular measure.SIN(5[mm])The following formula is inconsistent because the argument is dimensionless.SIN(5)

Where do I find it?

Application	Pre/Post
Prerequisite	A Simulation file or FEM file as the work part and displayed part
Customer Default	File→Utilities→Customer Defaults→Pre/Post→Expressions→General tab→Warn about Inconsistent Units within Mathematical Functions check box

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