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JLand02991-Visitor
1-Visitor
September 23, 2018
Solved

"These units are not compatible"

  • September 23, 2018
  • 2 replies
  • 2904 views

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

Screenshot (323).png

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Best answer by Werner_E
@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).

 

2 replies

V
VladimirN24-Ruby III
24-Ruby III
September 28, 2018

Please attach your Mathcad Prime worksheet to the message.

W
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).

 

    J
    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 

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