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Recent content by pstuckey

  1. pstuckey

    how to get absolute values in mathcad? like the usage of fabs operator in C

    go to View menu > toolbars > calculator to display the calculator toolbar Select the expression you want to use absolute value on, then click on the absolute value symbol in the calculator toolbar. Note the matrix toolbar has a symbol that looks identical to absolute value, but is for taking...
  2. pstuckey

    Temperature Stabilization of Up-converter

    A number of companies make passive pads that vary attenuation with temperature, for instance see below. http://www.emc-rflabs.com/Passive-Components/Thermopad.aspx Peter
  3. pstuckey

    MathCAD matrix units displayed messing up result

    If you're not running M020, definitely upgrade to that. I think that fixed that problem, although it's been awhile since I've used M14, and the PTC resource center is not terribly helpful on what was fixed in each upgrade. Peter
  4. pstuckey

    MathCAD matrix units displayed messing up result

    What version of Mathcad are you using? There was a bug similar to this I think in the early versions of MC13 or MC14 which was (eventually) fixed by an update. Verify that you have all the available updates for the version you're using. Peter
  5. pstuckey

    font in listbox or textbox

    Right click the text box > Mathsoft TextBox Control Object > Properties > Fonts. Peter
  6. pstuckey

    Surface Plot

    Try right clicking on the graph and unchecking the box that says "border". I think this is a known bug, but knowing how long it takes Mathcad to fix bugs, it probably wouldn't hurt to send them a reminder about it. Peter
  7. pstuckey

    How can I get MathCAD to show flux density in units of Guass

    Sounds like you have a "T" on the left hand side somewhere (short for turns maybe?). This would cancel the unit tesla and make the result dimensionless. If not, it probably would be best for you to post a worksheet. Peter
  8. pstuckey

    Excel Information Inserted

    I assume you're referring to cell D4 being 0? If so it's because there's an error in the input variables, although with 41 input variables(!!) it's difficult to see this, and it will get even worse if you ever expand the table. I would suggest deriving your table inputs using a for loop, and...
  9. pstuckey

    Mathcad - recursive function. How to write

    For a problem such as this it is easiest if you upload the Mathcad worksheet. The way to solve it is to make c.a(delta t) a program. If you're not familiar with how to do that in Mathcad upload the sheet and I'll show you how. Also, unless I'm missing something c.a is not a recursive...
  10. pstuckey

    If statement using a vector

    See if the attached is what you're looking for. The two are identical, test1 uses a program, and test2 uses a range variable. The program is more flexible, but some people prefer range variables. If this isn't what you're looking for, please describe the output you are expecting. Peter...
  11. pstuckey

    Loop output as input

    You can add another function below your Calc function to do this. For instance: Results(x):= | table<-Calc(0) | index<-table[0,2 | for i = 1;x | newtable<-Calc(index) | table<-augment(table,newtable) |...
  12. pstuckey

    Battery Capacity modeling

    This site has a large amount of information on rechargeable batteries and is a great place for a beginner to start. http://www.buchmann.ca/default.asp Peter
  13. pstuckey

    High temperature magnet wire

    Take a look at wire wrapped with a fiberglass braid. A number of companies make them, Radix wire is one I've used in the past. http://www.radix-wire.com Peter
  14. pstuckey

    creating phase delay

    I think you can probably find a chip here that will do what you need. http://www.datadelay.com/index.htm Peter
  15. pstuckey

    Aluminia Thin Film Circuit Boards

    Before you go to alumina, you should look at high performance "FR4-like" materials. The attachment has a good summary of materials in table 1 and table 2. Rogers (and others) make laminates with much tighter tolerances than FR4, but they can still be fabricated with standard FR4 processes...
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