My Calculator, with some advanced features (arithmetic parsing)

I tried to build a “scientific” calculator, using the shunting yard algorithm. I didn’t really focus on design, more on functionality. Hoping to get some feedback on my Javascript.

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That’s awesome. Great job.

My only minor comment is maybe increasing the size of the text.
The minus (-) sign and (.)deciman point kinda looks very similar, and they’re also side by side.

You can make the 0 digit (2) blocks wide, and put the decimal point (.) to where the [0] key currently resides. From a usability point of view, I think the decimal point should be grouped with the digits…

But those are just minor comments. Great job again.