leslieglasser

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17 years, 330 days

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These are questions asked by leslieglasser

For exaqmple, the quadratic equation w^2 + uw + v = 0 corresponds to the deter minant


| -u  1  1  |

| v    0  1  |  = 0

|w^2 w w-1|

Is there any way to find a determinant corresponding to an equation, as above?

This is an issue in the preparation of a nomograph for the initial equation.  

It is generally solved by trial and error.



y = 0;

0 = 0

 

`\`if'`(0 = 0, x, 0 = Float(infinity))

 

0, 0

 

`\`if'`(1 = 0, x, 0 = -1.)

 

1, 0

 

`\`if'`(2 = 0, x, 0 = .5000000000)

 

2, 0

 

0.

(1)

``



Download lattsum1.mw

How do I plot a 3d helicoid?  I can easily plot a helix, but cannot figure out how to fill the plane to the axis, to generate the helicoid?

Leslie

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