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rwells1-Visitor
1-Visitor
February 21, 2015
Solved

Lines in 3D space . . .

  • February 21, 2015
  • 2 replies
  • 5670 views

0220150921.jpg

Best answer by rwells

I see Werner point about the redundant "overview" to a single post. In fact I am not certain myself about whether or not I am the one that propagated such an extensive discussion about PTC Mathcad politics and protocol. My own use if the site however (if anyone cares) has been a huge success. I am quite impoverished and only have Mathcad 2000 . . .and no internet. I must use the nearby library to seek membership and support from various mathematics discussion groups. In doing so I have learned to be a very careful user of words and sentences. None the less, the picture in my original post about lines in 3d space was accomplished by extensive back and forth verbatim within in the PTC community (about a year ago). Werner and Fred Kohlhepp were big and patient contributors. Now I know it is only a "postage sized" picture, but I have several others, like my first two intersecting planes and my first sphere, that I will not post of course. In each case, the advancement of mathematical understanding, for me at least, was profound.

2 replies

W
Werner_E25-Diamond I
25-Diamond I
February 21, 2015

Is there any question you would like to ask?

And second - is there anything we should see on that stamp size mini photo? Its better to attach you worksheet.

    R
    rwells1-VisitorAuthor
    1-Visitor
    February 22, 2015

    No . . .I was not able to finish this post. Not sure how to delete the question as I have not used this site in quite some time

    W
    Werner_E25-Diamond I
    25-Diamond I
    February 22, 2015

    You can delete a post of yours as long as nobody has replied to by clicking on "Actions" at the lower left.

    The new design hides that options and forces us to make one more unnecessary click as we were used to.

    But this design is a PITA anyway - too much cluttered so we are forced to scroll down heavily on every page and no way to get a simple straight clear overview. We have no chance to see at a glance who answered a post (we just see who initially posted). We cannot collect new posts from various places we are interested in. The streams don't qualify as an overview as one post blows up to about ten lines there so its pretty useless.

    After one week of use I see that I continuously begin to use this forum less and less - its simply too cumbersome.

    R
    rwells1-VisitorAuthorAnswer
    1-Visitor
    February 26, 2015

    I see Werner point about the redundant "overview" to a single post. In fact I am not certain myself about whether or not I am the one that propagated such an extensive discussion about PTC Mathcad politics and protocol. My own use if the site however (if anyone cares) has been a huge success. I am quite impoverished and only have Mathcad 2000 . . .and no internet. I must use the nearby library to seek membership and support from various mathematics discussion groups. In doing so I have learned to be a very careful user of words and sentences. None the less, the picture in my original post about lines in 3d space was accomplished by extensive back and forth verbatim within in the PTC community (about a year ago). Werner and Fred Kohlhepp were big and patient contributors. Now I know it is only a "postage sized" picture, but I have several others, like my first two intersecting planes and my first sphere, that I will not post of course. In each case, the advancement of mathematical understanding, for me at least, was profound.

    P
    PhilipOakley1-Visitor
    1-Visitor
    February 26, 2015

    Hi Roger,

    Glad you have found the site to be beneficial. I think we all want it to be that way, and 'ease of use for all' is something that the older hands have complained about for the frequent use scenario.

    There used to be 10 to 30 posts per day most days on the old collaboratory. It didn't pretend to have fancy graphics, but did have a number of features that allowed the regular contributors to review all the new posts since they last looked in quick succession and help and advise everyone.

    The new site unfortunately has lost some of the power usage features, so I don't bother returning that often any more, except when there is something awkward I need support on (see current 3d graphics thread).

    Always happy to help

    Philip

    R
    rwells1-VisitorAuthor
    1-Visitor
    February 27, 2015

    I now have the income to afford a Mathcad program. Probably this summer. The one I have now is Mathcad 2000 that I bought at a college bookstore for about 200 dollars. It was just sitting up on the counter and I thought it might be cool. I have accomplished quite a lot on that same computer with that same program. And I have used all of the others (I live next to a university) like Wolfram and Mathematica. But I don't always have access to those facilities of course (sometimes I just ask and they let me in the math lab . . .It's that simple!) But yea . . .this summer I plan to purchase an inexpensive laptop and a Mathcad program. I have found the latter to be quite difficult. The "download" option is out of the question. I have moved heaven and earth to get the "free 90 day trials". The security is unbelievable. They act like I you are trying to get the nuclear launch codes. I just want to order the disk or walk into a bookstore and buy the stupid thing in the same way you buy a video at Wallmart. I could probably buy the thing at the university (Boise State if you care) book store but I think you need to be a student. My solution to that would be to pay another student or sign up for one class . . .like music appreciation 101) . . .ya know whatever it takes. Maybe "craigs list". It doesn't even need to be new or the latest version (which I believe they call "Prime") Any suggestions?

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