*DEFINE_CURVE
Specifies magnitudes that are given in tabular format. Some keywords require magnitudes to be specified as a load curve. Should a constant be needed, it may be represented as a curve by repeating its value for time steps 0 and 1.
Card1
LCID = ID for load curve, is incremented every time a new load curve is defined.
Cards 2, 3, 4...
A = abscissa value, usually time.
O = ordinate (function) value.
*DEFINE_CURVE_FUNCTION
Specifies a time function where the magnitude is defined by a function expression.
Card1
LCID = ID for load curve, is incremented every time a new load curve is defined.
Cards 2, 3 , 4
Lines of eighty characters used to form the text of the function.