Changes between Version 2 and Version 3 of u/johannjc/scratchpad13


Ignore:
Timestamp:
03/11/16 13:50:08 (9 years ago)
Author:
Jonathan
Comment:

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  • u/johannjc/scratchpad13

    v2 v3  
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    94 $\sin{\phi} = 1 \rightarrow e = \sqrt{1 - (1 + x)^2(1-x^2-2x)} = \sqrt{1 - ( (1 + 2x + x^2)(1 - x^2 - 2x))} = \sqrt{1 - (1 - x^2 - 2x + 2x - 2x^3 - 4x^2 + x^2 - x^4 - 2x^3)} = \sqrt{1-(1  - 4x^3 - 4x^2 - x^4 )} = \sqrt{4x^2+4x^3+x^4} = 2x+x^2$
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    10094== parallel kick==
    10195$  (c_s \pm v_k)^2 = v_k^2 (2-r/a)$