Operating
Point

Finds steady state bias point and
produces report of circuit voltages, currents and device operating
parameters Analysis over time. Provides voltage, current and power
at all nodes or devices.

Transient

Performs a small signal analysis
of the circuit linearised about its operating point.

AC

Operates
in one of six modes:
Frequency
sweep. (As standard SPICE)
Device
sweep. (E.g. resistor or capacitor value)
Model
parameter sweep
Global
parameter sweep
Temperature
sweep
Single
step Monte Carlo sweep (repeats analysis while applying component
tolerances).

DC

Repeats DC solution using any of
the sweep modes, except frequency, described for AC analysis.

Noise

Performs a small signal noise analysis of the circuit linearised about its
operating point. Calculates total noise at a nominated output and the
contributions from every noisy device. Operates in any of the six modes
described for AC analysis. 
Transfer Function

Similar to AC but calculates response to a single output from all sources.
Operates in any of the six modes described for AC analysis. 
Real Time
Noise

An extension of transient analysis, applies noise generators to all noisy
devices with a magnitude calculated using the same equations as for small signal
noise. Allow noise plotting in real time. 
Sensitivity

Calculates sensitivity of circuit components and model parameters to a specified
circuit parameter. 
PoleZero

Finds the AC transfer function of a circuit in terms of its pole and zero
locations. 