Skip to main content
JLand02991-Visitor
1-Visitor
September 23, 2018
Solved

"These units are not compatible"

Can anyone figure out why these two values are not compatible?

Screenshot (323).png

This topic has been closed for replies.
Werner_E
Werner_EAnswer
25-Diamond I
September 28, 2018
@JLand0299 wrote:

Can anyone figure out why these two values are not compatible?

 

Yes - A2 obviously should have dimension "area" but its just a length.

A1*x1 is a volume but A2*x2 is just an area - you can't add a volume and an area.

Possibly you meant r^2 in the formula for A2 (area of a circle with diameter r ?)

You can omit all those unnecessary parentheses and you should use the built-in constant pi instead of your 3.141 (badly rounded anyway).

 

View in thread

3 replies

VladimirN24-Ruby IV
24-Ruby IV
September 28, 2018

Please attach your Mathcad Prime worksheet to the message.

Translate
Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
September 28, 2018
@JLand0299 wrote:

Can anyone figure out why these two values are not compatible?

 

Yes - A2 obviously should have dimension "area" but its just a length.

A1*x1 is a volume but A2*x2 is just an area - you can't add a volume and an area.

Possibly you meant r^2 in the formula for A2 (area of a circle with diameter r ?)

You can omit all those unnecessary parentheses and you should use the built-in constant pi instead of your 3.141 (badly rounded anyway).

 

Translate
    JLand02991-VisitorAuthor
    1-Visitor
    September 29, 2018

    I had this completed awhile ago, but you are correct I did forget the r^2. Still trying to get the hang of this program. I did also realize the constant pi in the toolbar.

    I do appreciate the advice 

    Translate
    Terms & ConditionsAccessibility statement