1- Is it possible to add columns to the datasheet because I were not able to.

I am a little unsure which data sheet you are referring to, but I assume it is the Calc|Table dialog, which you cannot add new columns to.

No, this cannot currently be done. It sounds more like you need a spread sheet. But I will consider adding something like it to a future version.

Not directly. But if you want to calculate the area between f(x)=x^2 and f(x)=1, you can ask Graph to calculate the area between the function f(x)=x^2-1 and the x-axis.

Yes. It will not be in Graph 4.4, but I plan to add this kind of grouping to one of the next versions.

1- Is it possible to add columns to the datasheet because I were not able to.

2- Also, can we formiven  new columns with a describe function of another column. Lets say that we have column A, B and I would like to add C. C will be square root of B values or 2 times of B values etc...

3- Can we describe a baseline  before we calculate the area of the curve we formed by use of a data list? Or could you do it?

4- I saw that someone asked you if you could add a property to the Graph by which we can form different folders for our graps in one Graph file. Will you do it?

I have other comments too but I do not remember them now...

Thank you very much for this great program.

Dilek