# with a mutiplication symbol after (x-600) (x-600)*(15000+400*(y-4000)/2000+1500*(0.4)*(850-x)/100)-y LCYqJiwmSSJ4RzYiIiIiISQrJ0YnRicsKCQiKysrK0k+ISImRidJInlHRiYjRiciIiZGJSQhKysrKytnISIqRidGJ0YtISIi # without the mutiplication symbol after (x-600) (x-600)(15000+400*(y-4000)/2000+1500*(0.4)*(850-x)/100)-y LCgtSSJ4RzYiNiMsKCQiKysrK0k+ISImIiIiSSJ5R0YlI0YrIiImRiQkISsrKysrZyEiKkYrISQrJ0YrRiwhIiI= # other mutiplication symbols discarded (x-600)(15000+400*(y-4000)/2000+1500(0.4)(850-x)/100)-y LCgtSSJ4RzYiNiMsJiImOlUiIiIiSSJ5R0YlI0YpIiImRikhJCsnRilGKiEiIg== # no mutiplication symbol (x-600)(15000+400(y-4000)/2000+1500(0.4)(850-x)/100)-y LCgtSSJ4RzYiNiMjIiZ3XSgiIiYiIiIhJCsnRipJInlHRiUhIiI= # in case you doubt of what you have writte (or of what Maple understands) # a good reflex is to use the lprint comman (x-600)*(15000+400*(y-4000)/2000+1500*(0.4)*(850-x)/100)-y: lprint(%); (x-600)*(19300.00000+(1/5)*y-6.000000000*x)-y (x-600)(15000+400*(y-4000)/2000+1500*(0.4)*(850-x)/100)-y: lprint(%); x(19300.00000+(1/5)*y-6.000000000*x)-600-y