I am trying to scale the y-axis as follows:(adsbygoogle = window.adsbygoogle || []).push({});

0.1

0.4

0.8

1.6

3.2

6.4

12.8

25.6

51.2

102.4

204.8

406.9

819.2

I want the major units to double with each step up the y-axis, starting at 0.1 and terminating at 819.2.

The problem is, I have no idea how to achieve this! I tried using the logarithmic option in Excel, and also in OpenOffice Calc, but it was of little help and did not seem to allow me the flexibility I need.

The logarithmic option in Calc scaled the graph 0.1, 1, 10, 100, 1000. This does not provide enough resolution.

I was told Graphmatica ( http://www8.pair.com/ksoft/ [Broken] ) will allow me to achieve my goal. But I have no idea how to use Graphmatica and there seem to be no tutorials for it anywhere? I do not even know where in Graphmatica i am supposed to enter the equations?

This is the formulae I would like to illustrate on a graph:

Tan(90-As)*1.205*pi*2

And also (on the same chart):

1.205/cos(90-As)*pi*2

Where:

As = Steering angle (0 to 90 degrees).

My intention is to illustrate the difference in turning circles between the rear wheel and the front wheel for a bicycle with a wheelbase of 1.205 meters.

Any help appreciated.

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# Logarithmic Graphs in Graphmatica

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