WITH LOOKUP(x,(L#)) LOOKUP the y value in the xy pairs L# corresponding to x

Specifies a nonlinear relationship between the input x and the output by passing the input through a series of x,y pairs specified as numbers. It is the same as L(x) where L is defined by the equation L(L#).

Restrictions: Must appear first on the right hand side of the equation and can not be followed by anything else.

The WITH LOOKUP function is a convenient way to specify a nonlinear relationship without explicitly naming the Lookup function to be used. This can reduce clutter and be somewhat quicker than naming a separate Lookup variable but is not as flexible.

Units: WITH LOOKUP(dmnl,#) --> units

Just as for normal Lookup usage the x argument is expected to be dimensionless. If not, a warning is issued, but not an error. The output units are those for the left hand side variable.

Example

X=WITH LOOKUP(1.5,((0,1),(1,1),(2,2)) is equal to 1.5.