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APPENDIX
A
Variable names used
in equations.
FIELD
The variables used for defining
the force a field exerts on a particle are x, y, z for the position components
of the particle vx, vy, vz for the velocity components of the particle,
the name of the quantity the field acts on, e.g. for an electric field
that is described as Ex =10 , Ey = 0, Ez = 0 and acts on charge we define
Fx = charge*10, Fy = 0, Fz =0.
FORCE
The formula of a force among
two particles relates to a specific quantity. The variables that can be
used are:
For a quantity append to
the quantity name 1 or 2 e.g. for charge write charge1 or charge2.
x1, x2, y1, y2, z1, z2 for
the position components vx1, vx2, vy1, vy2, vz1, vz2 for the velocity components
of the first and second particle.
GRAPH
The formula of a graph relates
to specific particle. The variables that can be used are mass for the mass
of the particle, x, y, z for the position components vx, vy, vz for the
velocity components. Example to graph the x component of the momentum of
an particle against time type for the formula mass*vx.
FUNCTIONS
Cosine cos( )
Sine sin( )
Tangent tan( )
Absolute value abs( )
Power of a to b a^b
Power e to b exp( )
Natural logarithm ln(
)
Logarithm to the base 10
log( )
Unit step function u(
)
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