
puts "========================"
puts "BUC60968"
puts "========================"

restore [locate_data_file buc60968-c.draw] c 
restore [locate_data_file buc60968-s1.draw] s1

set che [extrema c s1]
set err [llength $che]
if { $err == 0} {
    puts "Error : command extrema does NOT work properly"
}



