 Rank: Newbie
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Joined: 04/10/2017(UTC) Posts: 4  Location: Kelowna
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I've tried many ways from examples I have found on the internet, but I just can't get the graph to plot. What am I doing wrong? Any help would be greatly appreciated.  [b]Foot note: The problems are solved. The main problem was units; units must be correct through out. When using constants be sure the value also has units attached (1.5 m, not 1.5, for example). The second was that for the extended graph plugin there seems to be a limit on the levels of conditional functions you can call. I ended writing the function as a one line which worked: Quote:m(x)={((x≥0m)&(x<L1))*M1(x)+((x≥L1)&(x<L1+L2))*M2(x)+((x≥L1+L2)&(x≤Ltot))*M3(x)}/1000 Edited by user 08 October 2017 20:32:27(UTC)
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 Rank: Member Groups: Registered
Joined: 10/10/2012(UTC) Posts: 24 
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Hello Dave,
maybe a simple scaling problem? Your results are of magnitude 8 N, your plot is in [kN].
Try scaling the plot area with [Ctrl]+scroll wheel or [Shift]+ scroll wheel.
Hope this helps...
Regards, csb.
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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Originally Posted by: Dave.ca  I just can't get the graph to plot Dave, please attach the work sheet.
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Rank: Newbie
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Joined: 04/10/2017(UTC) Posts: 4 Location: Kelowna
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Here Jean, thanks for looking Dave  MAST.sm (1,470kb) downloaded 22 time(s).
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  Rank: Advanced Member Groups: Registered, Advanced Member Joined: 13/01/2012(UTC) Posts: 2,647   Location: Italy Was thanked: 1329 time(s) in 875 post(s)
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Input units are needed... in the standard 2D plot, just use p(x*'m) / V(x*'m) ![2017-10-04 17_03_13-SMath Studio - [MAST.sm_].png](/forum/resource.ashx?a=19295&b=2) |
If you like my plugins consider to support SMath Studio buying a plan; to offer me a coffee: paypal.me/dcprojects |
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Rank: Guest
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Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
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1. The X_Y plot does not take conditional 2. Quick plot does not take units [there is way to trick] 3. units removed from the two conditional ... plots !!! Cheers... Jean MAST.sm (1,473kb) downloaded 30 time(s).
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Rank: Newbie
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Joined: 04/10/2017(UTC) Posts: 4 Location: Kelowna
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Yahoo! Thanks Jean! I understand the problem!
Dave
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