Graph how this derive ?

[ldante]

Nice..   The log scale grid  will give a good presentation in my graph..

[FredKohlhepp]

Thanks Werner and Luc!

[ldante]

How about this grid function ?  how this will work ? 

[Werner_E]

Unfortunately you can't just copy and paste pictures in this forum. You have to use the "Photos" button to embed pics in the message body.

[ldante]

I attached the screenshot. I considered x direction 10 and  y direction 1. vice versa .  why does not show any grid line ?

[LucMeekes]

There was a bug. Sorry

It's solved now.

Prime 4 sheet attached.

Luc

[ldante]

 Thank you very much .  This helps a lot ...

[ttokoro]

Thanks Luc and Werner_E for your very good Mathcad sheets. 

Now I can use your Mathcad functions.

Tokoro.