History List

lininterp
If this flag is set, linear interpolation is used to obtain the present value of signals in the history list.

quadinterp
If this flag is set, which is the default, quadratic interpolation is used to obtain the present value of signals in the history list.

compactrel
This is the relative tolerance used in history list compaction for level=2. The default value is the same as the WRspice default relative tolerance (reltol variable).

compactabs
This is the absolute tolerance used in history list compaction for level=2. The default value is the same as the WRspice default absolute tolerance (abstol variable).

The flag lininterp, when specified, will use linear interpolation instead of the default quadratic interpolation for calculating delayed signals.

The parameters compactrel and compactabs control the compaction of the past history of values stored for convolution when using level=2. Larger values of these lower accuracy but usually increase simulation speed. These are to be used with the trytocompact option, described in the .options section.