puts "================"
puts "OCC862"
puts "================"
puts ""
########################################
## The result is just one extremum - intersection is not found.
########################################
restore [locate_data_file OCC862_1.draw] c1 
restore [locate_data_file OCC862_2.draw] c2 

set result [extrema c1 c2]
set err [llength $result]
if { $err != 1} {
    puts "Faulty OCC862 (amount of solution): command extrema does NOT work properly"
} else {
    puts "OCC862 OK (amount of solution): command extrema works properly"
}

set 2dviewer 0