puts "============"
puts "OCC23706"
puts "============"
puts ""
#########################################################################
# Cannot project point on curve
#########################################################################

cpulimit 1000

2dbsplinecurve b3 2 6 1 3 2 1 3 1 4 1 5 1 6 3 2 5 1 3 7 1 4 8 1 4 8 1 4 8 1 5 9 1 9 7 1
2dbsplinecurve b4 2 6 2 3 2.5 1 3 1 3.5 1 4 1 4.5 3 -1 2 1 1 11 1 3 9 1 3 9 1 3 9 1 5 7 1 7 4 1

set info [2dextrema b3 b4]
set status 0
    regexp "dist 1: +(\[-0-9.+eE\]+)" $info full pp
    if { $pp > 1.0e-7 } {
       puts "Error : Extrema is wrong"
       set status 1
    }

if { $status != 0 } {
    puts "Error : Extrema is wrong"
} else {
    puts "OK: Extrema is valid"
}