Solver DESCRIBE a cylinder
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==section input Describe the cylinder with the base radius of *[input r=1] and height of *[input h=2]. ==section solution perl $V = (3.1415*$r*$r*$h); print " This cylinder has volume {{{V=pi*r^2*h = pi*$r^2*$h = $V }}}. This cylinder has surface area of {{{S=2*pi*r^2+2*pi*rh = " . (2*3.1415*$r*$r + 2*3.1415*$r*$h) . "}}}."; ==section output V ==section check
