LON-CAPA Help

• $external::target - set to the current target the xml parser is parsing for

• $external::part - set to the id of the current problem < part > ; zero if there are no < part >

• $external::gradestatus - set to the value of the current resource.partid.solved value

• $external::datestatus - set to the current status of the clock either CLOSED, CAN_ANSWER, CANNOT_ANSWER, SHOW_ANSWER, or UNCHECKEDOUT

• $external::randomseed - set to the number that was used to seed the random number generator

• $pi - set to PI

• $rad2deg - converts radians to degrees

• $deg2rad - converts degrees to radians