# gp.accel

Syntax

## Vector Access

v := gp.accel(gp<,i>)

Get the acceleration vector for the gridpoint. Returns a vector, unless an optional component argument i is supplied, in which case it returns the component value. This is only available if model configure dynamic has been specified.

Returns: v - acceleration vector or component z - zone pointer i - optional vector component, from 1 to 3

## Component Access

f := gp.accel.x(gp)

Get the $$x$$-component acceleration vector. This is only available if model configure dynamic has been specified.

Returns: f - $$x$$-component acceleration vector z - zone pointer
f := gp.accel.y(gp)

Get the $$y$$-component acceleration vector. This is only available if model configure dynamic has been specified.

Returns: f - $$y$$-component acceleration vector z - zone pointer
f := gp.accel.z(gp)

Get the $$z$$-component acceleration vector. This is only available if model configure dynamic has been specified.

Returns: f - $$z$$-component acceleration vector z - zone pointer