Spanish: convenio de signosEnglish translation: sign convention 
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Spanish to English translations [PRO]
Science - Physics / geometric optics | | Spanish term or phrase: convenio de signos | Study programme for a university course on geometric optics:
Dióptrico esferico: convenio de signos. Construcción de imágenes en el dióptrio: foco imagen y foco objeto. Aumento lateral y angular de un dióptrio. Espejos esfericos.
any ideas please?
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| | | sign convention | Explanation:
sign convention
Se refiere al convenio para dar valor positivo o negativo a las cifras de los cálculos.
http://lists.nau.edu/cgi-bin/wa?A2=ind0303&L=phys-l&F=&S=&P=...
How many of you use the Cartesian sign convention for optics?
I am used to the sign convention that has virtual images being negative and object distances being positive.
http://cord.org/step_online/st1-3/st13eii3.htm
C. Mirror formulas for image location
(...)
2. Sign convention. The sign convention to be used in conjunction with Equation 3-6 and Figure 3-18 is as follows.
Object and image distances p and q are both positive when located to the left of the vertex and both negative when located to the right.
The radius of curvature r is positive when the center of curvature C is to the left of the vertex (concave mirror surface) and negative when C is to the right (convex mirror surface).
Vertical dimensions are positive above the optical axis and negative below.
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Note added at 16 mins (2006-02-25 11:01:45 GMT)
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http://scienceworld.wolfram.com/physics/OpticsSignConvention...
Optics Sign Conventions
There are a number of different conventions used for keeping track of the orientations of images in optics. The "Cartesian" convention is used by Schroeder (1987). It is similar to that of Born and Wolf (1999) and Longhurst (1967). In this convention, distances to the left of the vertex are negative, and distances to the right are positive. Distances from the optical axis are positive if measured upwards.
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Note added at 18 mins (2006-02-25 11:03:30 GMT)
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http://panda.unm.edu/courses/finley/P262/OptSignConv2/OptSig...
Sign Conventions Used for Mirrors, Refracting Surfaces, and Lenses |
| Selected response from:
Urico
Spain
| Note from asker to answererThanks Urico
xx
4 KudoZ points were awarded for this answer |
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14 mins confidence:  |
| sign convention
Explanation:
sign convention
Se refiere al convenio para dar valor positivo o negativo a las cifras de los cálculos.
http://lists.nau.edu/cgi-bin/wa?A2=ind0303&L=phys-l&F=&S=&P=...
How many of you use the Cartesian sign convention for optics?
I am used to the sign convention that has virtual images being negative and object distances being positive.
http://cord.org/step_online/st1-3/st13eii3.htm
C. Mirror formulas for image location
(...)
2. Sign convention. The sign convention to be used in conjunction with Equation 3-6 and Figure 3-18 is as follows.
Object and image distances p and q are both positive when located to the left of the vertex and both negative when located to the right.
The radius of curvature r is positive when the center of curvature C is to the left of the vertex (concave mirror surface) and negative when C is to the right (convex mirror surface).
Vertical dimensions are positive above the optical axis and negative below.
--------------------------------------------------
Note added at 16 mins (2006-02-25 11:01:45 GMT)
--------------------------------------------------
http://scienceworld.wolfram.com/physics/OpticsSignConvention...
Optics Sign Conventions
There are a number of different conventions used for keeping track of the orientations of images in optics. The "Cartesian" convention is used by Schroeder (1987). It is similar to that of Born and Wolf (1999) and Longhurst (1967). In this convention, distances to the left of the vertex are negative, and distances to the right are positive. Distances from the optical axis are positive if measured upwards.
--------------------------------------------------
Note added at 18 mins (2006-02-25 11:03:30 GMT)
--------------------------------------------------
http://panda.unm.edu/courses/finley/P262/OptSignConv2/OptSig...
Sign Conventions Used for Mirrors, Refracting Surfaces, and Lenses
| Urico
Spain
Native speaker of:  Spanish
PRO pts in category: 4
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