Drawing contour plots z = f(x,y) using R

Our equation contour plot drawing page requires an equation of the form z = f(x,y). Colors may be assigned to the levels of Z.

This solver page allows setup of the following parameters.

• gx, gy - rectangular dimension width, height in inches of contour plot.
  
• xlo, xhi, nx - lower and upper limits for x and number of points for x.
  
• ylo, yhi, ny - lower and upper limits for x and number of points for x.
  
• colors - choices are [gray|rainbow|topo.color|terrain.color|heat.color}
  
• equation - the formula for z as a function of both x and y.
  
• image - whether to display plain level-curves only or colored contours.
  
• levels - maximum number of levels to display.
  
• Title-title of plot
  

Here is an output for contour plot whose equation is $$z = exp((sin(x))^2+ cos(y).$$