IDENTIFICATION DIVISION
PROGRAM-ID ChargeInEMfield
VERSION 20240116
COMMENT A mass m with charge q>0 is located in a static electro-magnetic field [0,0,E], [0,-B,0].
COMMENT Find the trajetory
COMMENT Differential equation (Lorentz force): x'' = omega*z', z'' = a*omega^2 - omega*x'
COMMENT good start settings are omega=0,92, a*omega^2=0,05

ENVIRONMENT DIVISION
ENGINE Anabrid-THAT
TIMEBASE 1ms # corresponds to 1s
REQUIRES INTEGRATOR 4
REQUIRES INVERTER 1
REQUIRES COEFFICIENT 3

DATA DIVISION
OUTPUT OUTPUT.X x
OUTPUT OUTPUT.Z z

PROGRAM DIVISION
x'' -> INTEGRATOR.1 -> -x'
-x' -> INTEGRATOR.2 -> x
-x' -> COEFFICIENT.6 -> -omega*x'
+1  -> COEFFICIENT.7 -> a*omega^2
a*omega^2, -omega*x' -> INTEGRATOR.4 -> -z' # input is z''
-z' -> INTEGRATOR.5 -> z
-z' -> INVERTER.1 -> z'
z'  -> COEFFICIENT.5 -> omega*z' = x''

OPERATION DIVISION
MODE REPEAT
OP-TIME 21ms