For comprehensibility reasons, a parameter for a cross-section should be defined at first. The "CrossSection" function provides the cross‑section according to its number. Now, you can select any cross-section value using the "GetCSPar" formula. Click the Info button to display the "Info about Cross‑Section" window with an additional column titled "ID". Here, you can find the correct syntax for the individual cross-section values.
For determining the precambers, you need to know a buckling curve. This can be selected as well. You should note that the value designation of buckling curves is to be converted into figures, so "a" into 1, "b" into 2, and so forth. If the precamber is tabulated at regular intervals - as in EN 1993‑1‑1 - a direct calculation is possible. In the case of irregular tabulation - for example, in the German National Annex to EN 1993‑1‑1 - the precamber can be determined by means of a nested IF function.
