Calculating pressure from P:=rho*g*H, where
rho has unit kg/m3
g has unit m/s^2
H has unit mm

P gets unit m3/m3*Pa if I try to change the default unit to Pa. It is in fact Pa because the volumes cancel out each others but my document becomes very uncomprehensive to read as this happens with other multiplications too. How to get the m3/m3 dropped out, I couldn't find a working solution?

B.R. Timo

Wrote

Calculating pressure from P:=rho*g*H, where
rho has unit kg/m3
g has unit m/s^2
H has unit mm

P gets unit m3/m3*Pa if I try to change the default unit to Pa. It is in fact Pa because the volumes cancel out each others but my document becomes very uncomprehensive to read as this happens with other multiplications too. How to get the m3/m3 dropped out, I couldn't find a working solution?

B.R. Timo

Are you sure you have entered units correctly?
Result is already Pascal in my calculation.

Regards

Hello and thanks for your replay. Yes, I am sure my input is correct because the default unit Smath gives is J/m3 which equals to Nm/m3 which equals to N/m2 which is Pa. When I try to changet the unit to Pa the m3/m3 pops up and remains there whatever I try. In fact the unit is equal to Pa because the m3/m3 is unity and does nothing but creates good confusion to a reader. Therefore I would like to get it away.

I tried to take a screen capture but couldn't figure out how to get it here, Ctrl+V does not work and I don't kow how to proceed with URL to get something here. However, the problem is simple, how to remove away the unity part or remaining units.

B.R. Timo

Hi again,

you were right, I had rho in kg/m3 instead of kg/m^3. A typo which was quite difficult to recognize. It would be beneficial to be able to add a capture snippet like you had. How do you make that?

B.R. Timo

Wrote

Hi again,

you were right, I had rho in kg/m3 instead of kg/m^3. A typo which was quite difficult to recognize. It would be beneficial to be able to add a capture snippet like you had. How do you make that?

B.R. Timo

So it was a typo then, easy to miss hard to find.
You can capture image, save it and upload to SMath forum with this.



Regards

Wrote

Wrote

Hi again,

you were right, I had rho in kg/m3 instead of kg/m^3. A typo which was quite difficult to recognize. It would be beneficial to be able to add a capture snippet like you had. How do you make that?

B.R. Timo

So it was a typo then, easy to miss hard to find.
You can capture image, save it and upload to SMath forum with this.



Regards

Or post the SM file in the same fashion