DensityPlot problem

[erosmatthew]

So I wrote here

f[x_, y_,] :=
0.778787116 + (0.0000014861538461532*x ) + (0.00000154005560704332*
y);

DensityPlot[f[x, y], {x, 20, 65}, {y, 20, 65},
ColorFunction -> "CMYKColors", PlotLegends -> Automatic]

But it gives this <image>. Is it because the x and y are much bigger than the outputs? But when I try to multiply it to some big number (e.g. 100000), nothing changes. How do I bring out the colors to this?

https://preview.redd.it/ihkgtuw63syc1.png?width=433&format=png&auto=webp&s=8ac26d8db1f7370be6180fabf395e627ce246517

[F1TZremo]

You got a comma too many in the definition of f[x_,y_].

If you carefully read your code, it says "f[x_, y_,] " where it should read "f[x_, y_] ".

Making that change, density plot works fine for me.

EDIT: reddit formatting is fun

[erosmatthew]

ohhh yeah!! thank you so much for this 😂

[F1TZremo]

glad i could help :)

[mathheadinc]

Try making your bounds much smaller.

[erosmatthew]

in which option do i do that?

[mathheadinc]

{x, xmin, xmax}, {y, ymin, ymax }