Plotting a vector with arrow head as a function?

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Plotting a vector with arrow head as a function? - Arrow with head as a polygon, rotated moved

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rana		#1 Posted : 24 March 2018 18:36:32(UTC)
Rank: Newbie Groups: Registered Joined: 24/03/2018(UTC) Posts: 3 Location: Germany		Dear experts, Sorry if this question is stupid, but I am new to SMATH. In order to plot some simple vector diagrams (using the SMATH built in diagram) I did the following. I want to plot the vector from a given start point with given length and angle. So for the arrow I created a polygon, rotaded and moved it. This works quite well. I als can put the formulars into the plotting input area. But it would be nicer to define a function e.g. Arrow(start_x; start_y; length; angle). Is this possible? What would be the syntax? Is there maybe a smarter way of doing this? Thanks in advance! Ralf arrow1.sm (12kb) downloaded 27 time(s). Edited by user 24 March 2018 18:40:07(UTC) \| Reason: Not specified


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Davide Carpi		#2 Posted : 24 March 2018 19:02:49(UTC)
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)		Hello Ralf, welcome in the community Simply put a function name on the LHS (left hand side) of the assignment operator arrow1 (r1).sm (13kb) downloaded 48 time(s). Once you have done it if you want to rename a variable inside the function you can do it at once using the F8 key when the text cursor is inside the variable you want to rename. Edited by user 08 April 2018 13:54:05(UTC) \| Reason: marked as SOLVED
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1 user thanked Davide Carpi for this useful post.		on 24/03/2018(UTC)
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Jean Giraud		#3 Posted : 24 March 2018 23:30:48(UTC)
Rank: Guest Groups: Registered Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)		Originally Posted by: rana I want to plot the vector from a given start point with given length and angle. Gorgeous application of the 2D rotation matrix. Few more in there. Jean Circle_rkfixed Arrow.sm (28kb) downloaded 55 time(s).


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