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Converting from XY to Polar Notation
 Rank: Newbie
Groups: Registered
Joined: 15/10/2010(UTC)
Posts: 2
Location: USA
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Hello,
I see that SMath has the functions xy2pol and pol2xy to assist in converting between cartesian and polar notation. When using xy2pol, the result is configured such that magnitude and angle appear share the same unit placeholder (angle result is given in units of radians). When configuring SMath to apply angle unit of "degrees" to the result, the conversion is also applied to the magnitude element of the result vector.
Is there a notation, or method available to utilize xy2pol in which the resulting vector has separate units for the magnitude component and the angle component?
BTW, I'm very pleased the functions exist in the first place!
Thanks!
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  Rank: Administration Groups: Registered, Advanced Member Joined: 23/06/2009(UTC) Posts: 1,740   Was thanked: 318 time(s) in 268 post(s)
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Hello Ballspin In the recent alpha version, there is no Angles-Radians Option. It was excluded from the menu. - Angles in dimensionless numbers are regarded as radians - You can use "rad" unit as well as "degree" unit. - The result of xy2pol and pol2xy functions is the equation system with two elements. - Equation systems are regarded as vectors. Here is an example how to use these functions and how to get both "rad" and "degree" results from xy2pol function.  I hope this could be the answer to your question. Regards, Radovan Edited by user 15 October 2010 23:45:29(UTC)
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When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!" |
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Rank: Newbie
Groups: Registered
Joined: 15/10/2010(UTC)
Posts: 2
Location: USA
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Thanks Radovan!
The easiest way to address individual elements of the result vector is to use "[" key to enter subscript element address...just like MathCAD!
Nice.
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Rank: Newbie
Groups: Registered
Joined: 02/10/2013(UTC) Posts: 1  Location: shah alam
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Easier way is
1. Polar to Rectangular (XY)
A∠θ = A*e^i*θdeg
As example
1000∠36.87°
Polar = 1000*e^i*38.87deg
Polar = 799.9989+600.0014*i
2. Rectangular (XY) to Polar
C = A+i*B
C = abs(C) <--magnitude
∠ = arg(C) <--angle in rad and change to degree by type deg at the end of answer
Example
C = 799.9989+600.0014*i
abs(C) = 1000
arg(C) = 0.6435 <--in rad
To convert into degree just type deg at the of 0.6435
arg(C)=36.87 deg
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Converting from XY to Polar Notation
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