1 The helmet base form can also be used to create a napkin origami hat for a formal table setting. 2  Fold the bottom point of the helmet base 2/3 of the way to the top. 3  Then, fold this point back onto itself so it is touching the bottom horizontal crease of the napkin. Fold the bottom point of the helmet base 2/3 of the way to the top. 2  Then, fold this point back onto itself so it is touching the bottom horizontal crease of the napkin. 3  If desired, go over these creases with a travel iron to create a crisp look for your folded napkin. 4  Flip the napkin over. 5  Bring the corners together.
The VLOOKUP function is designed to return only the corresponding value of the first instance of a lookup value. But there is a work-around to identify multiple matches. Although VLOOKUP is not used in these array formulas, they are easier to understand and troubleshoot. Table of Contents.
1 And after that I want to store all the symbolic functions in an array: Let's say my first function is: f1 (and I have gotten information of f1 by user in step 1 as f1=t) second one is: f2 (and I have gotten information of f2 by user in step 1 as f2=t^2) Now I want to make an array A= [ f1, f2].