Variables and Constants

y value of current graph at current X. This function can only be used for the post processor or the diff() and s() function and other special purposes.
x,f,t Variable. These variables receive during calculation the current x value. There are three different variables so that the user can select the right label for the job. (e. g. for frequency calculation f, for time calculations t)
w w=x*2*pi
hi Helper variable, dependent on settings in calculation options.
Pi Constant with value 3,141592654
E Constant with value 2,718281828
j Imaginary number j*j = -1