Coordinate Conversions: Rectangular, Cylindrical, Spherical
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02-04-2014, 04:48 AM
(This post was last modified: 05-01-2016 04:28 PM by Eddie W. Shore.)
Post: #1
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Coordinate Conversions: Rectangular, Cylindrical, Spherical
PLEASE SCROLL TO THE END OF THIS THREAD, the most recent version is there. Thanks,
Eddie Code: EXPORT COORDCONV() Note: Sqrt(-1) is that "I" character (Shift+3). Eddie |
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12-16-2014, 01:38 PM
Post: #2
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
(02-04-2014 04:48 AM)Eddie W. Shore Wrote: ** PLEASE IGNORE THIS PROGRAM - There is a problem with one of the commands (ARG) - apologizes for any inconvenience. ![]() |
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12-16-2014, 02:11 PM
(This post was last modified: 12-16-2014 02:27 PM by Han.)
Post: #3
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
Change sqrt(-1) to lower-case i (and ensure lower-case i is not declared as a local variable); or use the "i" character [Shift][3]. This will work around the possibility that users may not have enabled complex output from real input (page 1 in the Home settings).
Graph 3D | QPI | SolveSys |
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12-17-2014, 05:05 AM
Post: #4
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
(12-16-2014 02:11 PM)Han Wrote: Change sqrt(-1) to lower-case i (and ensure lower-case i is not declared as a local variable); or use the "i" character [Shift][3]. This will work around the possibility that users may not have enabled complex output from real input (page 1 in the Home settings). Thanks, Han. I works better now. Code: OK try this, use the lowercase "i" instead of the "i" from [Shift]+[3] or sqrt(-1). Seems to work. Please let me know. Thanks Luigi. |
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03-23-2016, 11:13 PM
Post: #5
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
I notice that in the section below "ρ*COS(θ)];" should theta be replaced with 'phi'.
I tried X=8, Y=6, Z=4 it returns 10.77, 68.2, 36.87. Working it in reverse = 8, 6, 8.62. That's 8.62 instead of 4. IF ch==6 THEN INPUT({ρ,θ,φ}); RETURN [ρ*COS(θ)*SIN(φ),ρ*SIN(θ)*SIN(φ), ρ*COS(θ)]; END; |
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05-01-2016, 04:26 PM
Post: #6
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
Thank you Bernard.
The corrected program below: Code: EXPORT COORDCONV() |
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10-03-2016, 11:51 PM
Post: #7
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RE: Coordinate Conversions: Rectangular, Cylindrical, Spherical
Sorry Eddie if I misled you. What I mean is this. You have the first section below, but should be the second section. ρ*COS(θ)]; should be ρ*COS(φ)];
First section IF ch==6 THEN INPUT({ρ,θ,φ}); RETURN [ρ*COS(θ)*SIN(φ),ρ*SIN(θ)*SIN(φ), ρ*COS(θ)]; error END; Second section IF ch==6 THEN INPUT({ρ,θ,φ}); RETURN [ρ*COS(θ)*SIN(φ),ρ*SIN(θ)*SIN(φ), ρ*COS(φ)]; correct END; |
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