I have an equation I have devised, it is:
$\frac{H+O}{25}+\frac{D}{12970}+\frac{E}{363}+110 = X$
The equation doesn't matter, I just posted it as an example. I need to be able to plug in values for $H$, $D$, $E$, and then receive what $X$ is. I don't have a graphing calculator, and I was wondering if anyone knew any websites or any way for me to do this?
I have to test it a couple hundred times, and I can't continually input this into my phone's calculator and record on paper my results. I have looked all over the web, but I'm not quite sure the wording that would accurately describe my issue, and therefore I have had no luck finding any information.