convenio de signos
English translation: sign convention
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| 10:45 Feb 25, 2006 |
| Spanish to English translations [PRO] Science - Physics / geometric optics | |||||||
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|  Selected response from: Andrés Martínez Spain Local time: 03:34 | ||||||
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| 5 | sign convention |
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Answers
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 |
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