Use the expression plotter to analyse your design in more detail. You can build an expression using placed probes, nets, or both.
Entering an expression
This example uses an RC filter with placed voltage and current probes.
Variables and Functions and Constants lists
You can also use the Variables and the Functions and Constants lists to build the expression.
Filter the Variables list from its drop-down. Select All, Probes or Nets. The list of Variables only includes nets with components attached, for example, a net placed on the workspace between two junctions, with no attached components.
Filter the Functions and Constants list from its drop-down. Select All, Algebraic, Relational, Logical, Trigonometric, Constant, Exponential, and Complex.
After filtering a list, double-tap the desired item to insert it into the equation.
Example - calculating DC power through a resistor
The expression in the following design calculates the DC power through R1 by multiplying the voltage across R1 by the current v(#PR1)*i(#PR2).
Example - cascade filter
The expressions in the following design compare the gain before and after C2. The expressions' magnitude and phase for varying frequencies is displayed in the AC sweep results to the right.
Expression plotter functions