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JM_10241707
4-Participant

Units

Why there is small variance with units and without units results in Prime

1 ACCEPTED SOLUTION

Accepted Solutions


@JM_10241707 wrote:

Why there is small variance with units and without units results in Prime


Because you used an inaccurate value when you converted psf to psi as ssato already indicated. Use more decimals and you get the result accurate to more than the two decimals as shown in your sheet:

 

Werner_E_0-1649242263510.png

 

You can't expect the results to be the same up to nine decimals if your calculation uses a value which is just rounded to 2 decimals!

 

View solution in original post

4 REPLIES 4

They are same with using same units.

 

Hi,

 

5*w*L^4/384/E/I

 

Both E and I have units that have not been added on the worksheet.

 

Cheers

Terry

ssato
14-Alexandrite
(To:JM_10241707)

Hi,

 

The number of significant digits in the unit conversion for "a" seems to be low.

 

ssato_0-1649211931518.png

 


@JM_10241707 wrote:

Why there is small variance with units and without units results in Prime


Because you used an inaccurate value when you converted psf to psi as ssato already indicated. Use more decimals and you get the result accurate to more than the two decimals as shown in your sheet:

 

Werner_E_0-1649242263510.png

 

You can't expect the results to be the same up to nine decimals if your calculation uses a value which is just rounded to 2 decimals!

 

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