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I am unable to get a proper plot in mathcad prime
Use vector operator on the Y function.
https://support.ptc.com/help/mathcad/en/PTC_Mathcad_Help/Help_WN5_Gridlines.html
Above is for Chart Component.Search the PTC community by "grid line", then you can get many Mathcad files to plot grid lines.
Solved: Polar plot axial gridlines - PTC Community
Plots and Mathcad Prime 7 - PTC Community
