If we have three independent variables , how can I fix the value of one variable and giving the range for two others in the contour plot command? I have mass of one Dark matter particle and then the mass of the other dark matter particle and the portal coupling as a third variable, how can I plot them in Mathematica software?
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1$\begingroup$ I believe this question is better suited for StackOverflow as it is more of a programming question and not related to physics per se. $\endgroup$– ZaellixACommented Jan 4 at 9:58
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1$\begingroup$ Welcome to Mathematica StackExchange! Please include Mathematica code for your expression in the question. $\endgroup$– DomenCommented Jan 4 at 10:13
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If I understand your question correctly, you have a function of 3 variables and want to fix the value of one variable and make a plot of the other 2 variables. here is an example:
f[x1_, x2_, x3_] := x1 x2 x3;
Plot3D[f[1, x2, x3], {x2, -1, 1}, {x3, -1, 1}]
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$\begingroup$ Works also with ContourPlot as requested... $\endgroup$ Commented Jan 4 at 11:06