</math>
Note, <math> E_2 </math> is complex. If |x|denotes the complex modulus:<br><math>\cosh{\left(\tau_{\textrm{CP}}E_2\right)} = \cos{\left(\tau_{\textrm{CP}}|E_2|\right)}</math>
=== Equation compared to Carver Richards 72 ===
[http://www.nmr-relax.com/manual/Dispersion_model_summary.html Please see the relax summary of the model parameters here.]