Skip to main content
L
Lilli1-Visitor
1-Visitor
January 17, 2012
Solved

Unit and graph

  • January 17, 2012
  • 8 replies
  • 7269 views

Hello,

I look for change unit of X-Y Plot.

q := 0°,1°.. 360°

R := 24 mm

L := 128 mm

d(q) := R*cos(q)-L*cos(q)

when I draw d(q) by a X-Y plot the units are in rad for q and m for d(q).

Is it possible to draw a graph with a specific units ?

Best answer by nas0k

One possible solution, please see the attached.

I hope this helps.

Norm

8 replies

N
nas0k1-VisitorAnswer
1-Visitor
January 17, 2012

One possible solution, please see the attached.

I hope this helps.

Norm

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

How did you do?

I must copy your graph in my sheet to obtain the good result.

Could you help me.

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

Simple explanation in the attached.

As I have already indicated, you just divide the variable by the required unit, using the / key.

Mike

M
MikeArmstrong1-Visitor
1-Visitor
January 17, 2012

As Norm has indicated in his example you just divide variable by the desired unit.

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

I'm really afraid but I understand you explaination but don't know apply!

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

Have a look below.

Image.jpg

Move the cursor to this position on the graph and then strike the / key and type the unit in. It should then look like this.

Clipboard01.jpg

Another note. I had to change the limits of your graph to get it to work, watch out for that.

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

Perfect Mike!

Many thanks

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

I have another question.

Is it possible to find d(q) min and d(q) max?

I have the answer but not with MathCad

d(q) min = 96.2 mm for q = 180°

d(q) max = 177.8 mm for q = 0° or 360°

Is-it possible to have the response by MathCad?

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

Have a look at the attached sheet. Description included.

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

Okay for the vector but you haven't the angle of min and max d value.

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

I didn't have this collapsed area, I continu with your docuent, it's possible?

IYou write that you use a program because there might be multiple results, if it wasn't the case what will be the solution?

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

Please see the attached. The collapsed Area is at the top of my sheet.

I have included the option for returning only single solutions.

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

How do you know all this thing? I'm French and I search a training or book to learn to use MathCad but specificly the mechanical calcul.

Do you know this type of book?

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

A lot of Mathcad users have taught themselves through experience and searching through the forum. How long have you been using Mathcad?

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

2 days without training.

M
MikeArmstrong1-Visitor
1-Visitor
January 18, 2012

Keep getting involved in the forum, wataching and reading and also keep asking questions. You'll pick it up soon enough

Mike

L
Lilli1-VisitorAuthor
1-Visitor
January 18, 2012

Many thanks Mike and Fred

Terms & ConditionsAccessibility statement