puts "======="
puts "OCC902"
puts "======="
puts ""
###############
## bad derivative
###############

pload QAcommands

set arg 5
set list [OCC902 $arg]

set we_have [lindex $list 8]
puts "we_have = $we_have"

set must_be_1 "Exp($arg*x)*$arg"
puts "must_be_1 = $must_be_1"
set must_be_2 "$arg*Exp($arg*x)"
puts "must_be_2 = $must_be_2"

if  {[string compare $we_have $must_be_1] == 0} {
  puts "OCC902 OK"
} else {      
  if { [string compare $we_have $must_be_2] == 0} { 
    puts "OCC902 OK"
  } else {
    puts "OCC902 Faulty"
  }	 
}