[SOLVED] I have a couple of questions about the gnuplot....

BMan8577 · 04-30-2011, 12:19 PM

I want to create a simple text file such as script.gnuplot which will act as a script to drive the gnuplot and when it reads the script from the stdin I want to plot a simple mathematical expression with using the sine of x or x squared. I looked at the man page of gnuplot but it didn't help too much with how to input a mathematical expression. Thanks again and I'm actually getting the hang of this a little bit now...lol. Thanks guys really really appreciated!!

Nylex · 04-30-2011, 12:55 PM

Did you try reading the documentation (this is for version 4.4)? Section 6 of that document tells you how to read commands from a file.

Plotting standard functions can be done as you might think:

gnuplot> plot sin(x)

For powers, it seems you have to use '**' (like in FORTRAN):

gnuplot> plot x**2

The documentation should cover these things, too.