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Paraxial approximation
open-in-new
<h2 id="external-links">External links</h2> <ul><li><a href="http://demonstrations.wolfram.com/ParaxialApproximationAndTheMirror/">Paraxial Approximation and the Mirror</a> by David Schurig, <a href="/facts/The_Wolfram_Demonstrations_Project/l0sh4gln">The Wolfram Demonstrations Project</a>.</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Greivenkamp, John E. (2004). Field Guide to Geometrical Optics. SPIE Field Guides. Vol. 1. SPIE. pp. 19–20. ISBN 0-8194-5294-7. <a href="0-8194-5294-7" target="_blank">0-8194-5294-7</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Weisstein, Eric W. (2007). "Paraxial Approximation". ScienceWorld. Wolfram Research. Retrieved 15 January 2014. <a href="/wiki/Eric_W._Weisstein" target="_blank">/wiki/Eric_W._Weisstein</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Greivenkamp, John E. (2004). Field Guide to Geometrical Optics. SPIE Field Guides. Vol. 1. SPIE. pp. 19–20. ISBN 0-8194-5294-7. <a href="0-8194-5294-7" target="_blank">0-8194-5294-7</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Greivenkamp, John E. (2004). Field Guide to Geometrical Optics. SPIE Field Guides. Vol. 1. SPIE. pp. 19–20. ISBN 0-8194-5294-7. <a href="0-8194-5294-7" target="_blank">0-8194-5294-7</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Greivenkamp, John E. (2004). Field Guide to Geometrical Optics. SPIE Field Guides. Vol. 1. SPIE. pp. 19–20. ISBN 0-8194-5294-7. <a href="0-8194-5294-7" target="_blank">0-8194-5294-7</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"Paraxial approximation error plot". Wolfram Alpha. Wolfram Research. Retrieved 26 August 2014. <a href="http://www.wolframalpha.com/input/?i=Plot%5B{%28x+Deg+-+Sin%5Bx+Deg%5D%29%2FSin%5Bx+Deg%5D%2C+%28Tan%5Bx+Deg%5D+-+x+Deg%29%2FTan%5Bx+Deg%5D%2C+%281+-+Cos%5Bx+Deg%5D%29%2FCos%5Bx+Deg%5D}%2C+{x%2C+0%2C+15}%5D" target="_blank">http://www.wolframalpha.com/input/?i=Plot%5B{%28x+Deg+-+Sin%5Bx+Deg%5D%29%2FSin%5Bx+Deg%5D%2C+%28Tan%5Bx+Deg%5D+-+x+Deg%29%2FTan%5Bx+Deg%5D%2C+%281+-+Cos%5Bx+Deg%5D%29%2FCos%5Bx+Deg%5D}%2C+{x%2C+0%2C+15}%5D</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> </ol>