The current model is assumed to be M1(A1+A2+A3+A4+M2(A5)), where the Mx models are multiplicative and the Ax models are additive.
| XSPEC> eqwidth 3 | | Calculate the total flux of component A2 (the third component of the model) and find its peak energy (E). The continuum flux is found by the integral flux of A1+A3+A4, using the range of 0.95E to 1.05E to estimate the flux. |
| XSPEC> eqwidth range .1 | | As before, but now the continuum is estimated from its behavior over the range 0.9E to 1.1E. |
| XSPEC> eqwidth range 0 | | Now the continuum at the single energy range (E) will be used. |
| XSPEC> eqwidth range .05 2 | | Now the component A1 is used as the feature, and A2+A3+A4 are used for the continuum. The range has been reset to the original value. |
| XSPEC> eqwidth 1 | | Illegal, as M1 is not an additive component. |
| XSPEC> eqwidth 7 | | Illegal, as there is no other additive component with A5 in its group to be used as the continuum. |