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Extra info for Mathcad User’s Guide
Example text
The section “Greek letters” on page 38 gives more details. • The infinity symbol ∞, which you insert by clicking or by typing [Ctrl][Shift]Z. Inserting Math on the Calculus toolbar 37 The following are examples of valid names: alpha xyz700 F1' b A1_B2_C3_D4%%% a%% The following restrictions apply to variable names: • A name cannot start with one of the digits 0 through 9. , 5o, 7h), or as a number times a variable ( 3 ⋅ x ). • The infinity symbol, ∞, can only appear as the first character in a name.
Release the [Alt] key to see the symbol in the string. For example, to enter the degree symbol (°) in a string, press [Alt] and type “0176” using the numeric keypad. N ot e The double-quote key (") has a variety of meanings in Mathcad, depending on the exact location of the cursor in your worksheet. When you want to enter a string, you must always have a blank placeholder selected. ” A string in Mathcad, while not limited in size, always appears as a single line of text in your worksheet. Note that a string such as “123,” created in the way described above, is understood by Mathcad to be a string of characters rather than the number 123.
The more efficient, second method is the subject of this section. The sections “Inserting Parentheses” on page 48 and “Deleting Parentheses” on page 49 describe ways to work with parentheses more efficiently. The editing lines consist of a horizontal line and a vertical line that moves left to right along the horizontal line. To make an operator apply to an expression, select the expression by placing it between the two editing lines. The following examples show how typing *c results in completely different expressions depending on what was selected.