This section includes 3 how-to topics for the SECH function, covering Insert Function entry, direct formula typing, and syntax review; 3 items are available without membership and 0 are membership-related.

How-to Index

#	Topic	Membership
1	1. Enter SECH from the Insert Function dialog box	Free
2	2. Type the formula directly in a cell	Free
3	3. Review the function syntax and parameter details	Free

How-to Guide

1. Enter SECH from the Insert Function dialog box

Entry point: Formula tab → Insert Function, or the fx button in the formula bar.

Select the cell where you want to enter the formula.
Click the fx button in the formula bar, or click Insert Function on the Formula tab.
Search for SECH in the dialog box.
Select the function and click OK.
Enter the required parameter in the Function Arguments dialog box.
Click OK to finish entering the function.

Success Criteria

UI state: The target cell shows the SECH formula or the calculated result.
Next actions: You can continue editing parameters, copying the formula, or filling it down.

Tips While Using

Common mistakes: Typing the wrong function name in search can make the function harder to find.
Environment limits: Internet access may be needed if you want to open online help.

2. Type the formula directly in a cell

Entry point: The target cell or the formula bar.

Select the cell where you want to enter the formula.
Type =SECH(...) directly in the cell or in the formula bar.
Press Enter to confirm.
If needed, review the syntax prompt after typing =SECH(.

Success Criteria

UI state: The cell shows the calculated result, and the formula bar keeps the full formula.
Next actions: You can continue editing the formula, dragging to fill, or copying it to other cells.

Tips While Using

Common mistakes: Incorrect parentheses, separators, or parameter formats can prevent the formula from calculating.
Environment limits: The parameter should be a value that can be used in a calculation.

3. Review the function syntax and parameter details

Entry point: Formula tab → Insert Function.

Click Insert Function on the Formula tab.
Type SECH in the search box.
Select the function and review the syntax SECH(number).
Confirm the parameter details before inserting the function.

Success Criteria

UI state: You can see the function name, syntax format, and parameter description.
Next actions: After confirming the syntax, you can insert the function and complete the calculation.

Tips While Using

Common mistakes: Entering the formula before checking the parameter type can lead to unexpected results.
Environment limits: The location of the function description may vary slightly with different interface layouts.