Displaying Formulas and Values 1

[RFRAN]

Hi Guys,

I have MathCad 8. I need to show my formulas and their values e.g. (M = wL^2/8 = 100x10^2/8 = 1250).

I cannot get MathCad to show the values without displaying the its' assignment.

Frantic

 

[monkeydog]

Frantic,
I would suggest you go to the mathcad forum and attach your file, those guys are very helpful.

 

[GregLocock]

You can't, automatically.

The best I can think of is to write

M : w*L^2/8

100*10^2/8 =

Which does what you want, but it is a pain.

I can't imagine there is much value in showing the intermediate step very often, one of the things MathCad normally gets right is assigning values to variables.

Cheers

Greg Locock

 

[RFRAN]

Thanks for the reply.

Frequently, in engineering, as the values change you need to verify what they are rather than relying only on the result of the equation.

Frantic

 

[GregLocock]

But you do that by assigning the values to variables

w:100
L:10
M:w*L^2/8
M=

will show you exactly what inputs you used, and the equation, and the result. Isn't that good enough?
Cheers

Greg Locock

 

[IRstuff]

check out this thread from the Mathcad Collab. There were others as well:

http://collab.mathsoft.com/read?22534,12

TTFN

 

[GregLocock]

OK, I see why you might need it now. Thanks for the link.

As usual there are depths of detail in MathCad that are far beyond my useage. Cheers

Greg Locock

 

[dpa]

I think this can be done in Mathcad 2001. I will have to go to another computer to try it. (No MCAD on this one). I am pretty sure I have done it. Having been a physics major for three semesters before washing out (i.e. transferring to the history dept) I like to see everything written down so I am pretty sure I have done this. Will let you know.

 

[dpa]

Sorry, my mistake. I must have been getting the display of intermediate results mixed up with Scientific Notebook. Scientific Notebook has some nice features but it is way too limited for engineering work. For example you can only have a single character subscript. You can't redefine the value of a variable further down in the worksheet without screwing up previous results. It is an academic tool and even there it has limitations. I have talked to them about this. Hopefully someday they will improve on this.

 

[cuky2000]

Your probably could get a fearly good result using symbolic evaluation in MathCad as follow:

W:100, L:10 (or any other value)

M:W*L^2/8
Symbolically evalue M --> or using the keys [Ctl] + [.]


The result should be M--> 100. 10 SQRT(4)

Good luck

 

[IRstuff]

The issue is that several people have asked about the possibility of having Mathcad show the numerical values displayed in place of the variable symbols in the final equation, so that for the above example:

M:W*L^2/8 would look like:

M=100*10*2/8

as a means of verifying the correctness of the calculation process instead of just the final answer TTFN

 

[CENAEN]

Does anyone know if Mathsoft has addressed this issue in newer versions of Mathcad?

 

[IRstuff]

No, that's not in any version including 11.

There are plenty of workarounds, such as displaying the individual values AFTER the calculation.

TTFN

 

[zliazmei]

Use this as an example:

M:45
L:85
w:M*L^2/8
w[CTRL]+[SHIFT]+[.]=
THIS WILL GIVE: W-->45*85^1/4=136.637

ZMEI