Expression table and radians mode

[ASky]

Hello,

I would like to be able to enter the geometric formula which solves for the length of a side of a polygon.

Side = 2(inscribed radius of the polygon)tan(pi/(number of sides of the polygon)

This formula only works when a calculator is set to radians mode. Is there a way to set the expression table to use radians mode instead of degrees in a geometric formula.

I know that I can just put a measurement of one line segment into the table, but as the polygon changes its number of sides, sometimes the line that was measured gets lost and then I lose the measurement.

This is not just converting the units from degrees to radians using rad(). The units in this formula are length on angular. If one sets a scientific calculator to radians mode the formula works in degrees mode, it does not and provides the same value as the NX expression table.

Thank you,

Andy

 

[wecurb]

Expressions>functions>All>Radians test string is not exact wording but should get you to the Radians ability. BTW expand the expressions window first.

 

[JohnRBaker]

When creating an Expression and you set the Dimensionality to 'Angle', under units you will have the option of using either 'degrees' or 'radians'.

John R. Baker, P.E.
Product 'Evangelist'
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Siemens PLM Software Inc.
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[ASky]

Thank you for the replies. I have since learned the typing "rtan" vs "tan" causes the formula to work properly.
A UG tech working with us found it deep in the knowledge fusion help.

Setting the dimensionality to angle does not work because there are no angles in the formula as i noted above. The dimensionality has to be a unit of linear measure inches, centimeters etc. A 54 sided polygon with an inscribed radius of 8.125" would be the inputs.

a=(2*8.125")tan(pi/54) for example

thanks again for the answers though.

Andy