https://kr.mathworks.com/help/pde/ug/pde.steadystatethermalresults.evaluateheatflux.html
evaluateHeatFlux - Evaluate heat flux of thermal solution at nodal or arbitrary spatial locations -...
This MATLAB function returns the heat flux for a 2-D problem at the nodal points of the triangular mesh.
https://se.mathworks.com/help/pde/ug/pde.steadystatethermalresults.evaluateheatflux.html
evaluateHeatFlux - Evaluate heat flux of thermal solution at nodal or arbitrary spatial locations -...
This MATLAB function returns the heat flux for a 2-D problem at the nodal points of the triangular mesh.