How to use field help to enter mathematical formulas in word

When working with documents, entering mathematical formulas is a common problem. Word provides a convenient feature for embedding mathematical formulas - fields. This article aims to introduce how to use fields to enter mathematical formulas in Word and solve your troubles. Read on now to learn how to quickly and easily insert complex mathematical formulas to make your documents more professional.

1. Input of fractions

If you want to use domains to solve the problem, then the input of fractions is still very simple. For example, if we want to enter the number three-quarters, as long as we press the [Ctrl F9] shortcut key at the corresponding position, an empty space (a pair of curly brackets) will be generated. Position the mouse within the braces, then enter [eq f(3,4)], then right-click and click the [Switch Field Code] command in the pop-up menu to get the standard fraction of four Three, as shown in Figure 1. You can imitate other fractions and write them without worrying about the horizontal line in the fraction. It will automatically adjust the length according to the length of the numerator and denominator. It should be noted that the field code must be entered in English half-width state. In addition, the pair of braces cannot be entered manually and can only be completed using shortcut keys.

Figure 1 Word switches the field code to get the fraction effect

2. Fraction with root sign

First let’s talk about a simple cubic root Enter two numbers like this. Or press the [Ctrl F9] shortcut key first, then enter the field code [eq r(3, 2)] in the braces, select the number [3] in the code, reduce its font size, and then press the right-click menu By using the [Switch Domain Code] command, you can get the number three times the root of two, as shown in Figure 2.

Figure 2 Enter the special field code in Word

Obviously, if you want to get the quadratic root, then just change the number [3] in the code to [2 】That’s it. However, usually our habit is to ignore the number of the square root [2]. Therefore, we can also directly omit the first number in the field code and write the code directly [eq r(, 2) 】Just fine.

As for the fraction with a root sign, that’s simple. Just combine the codes for fractions and radicals and change them in the corresponding positions. Therefore, the field code for a number such as the third root of two-half, two, should be [eq f(r(3,2),2)]. After pressing [Switch Domain Code], is the effect obtained good? Just look at Figure 2 to find out.

3. Input vector symbols

The vector symbol is an arrow symbol added above the English letters. This requirement can also be easily achieved using domain functions.

Enter the field code [eq o(→,a)] in the curly brackets, where the arrow symbol can be implemented using the [insert → symbol] method. If we click the [Switch Field Code] command in the right-click menu at this time, you will find that the result is just arrows and letters overlapping, which is not the result we want. So, how do you make the arrow move upward?

Select the arrow in the field code, right-click, and then click the [Font] command in the pop-up menu to open the [Font] dialog box. Click the [Character Spacing] tab, then click the [Position] drop-down list, select [Boost], and use the subsequent [Point Size] fine-tuning button to set the lift value to [5 points], as shown in Figure 3.

Figure 3 Setting the character spacing in Word

After confirmation, the arrow symbol can be moved upward by 5 points, so that it can be moved above the characters. Now, select the field code and click the [Switch Field Code] command to get the expected effect, as shown in Figure 4.

Figure 4 The effect after adjusting the arrow characters

If you find this operation troublesome, you can also directly enter the code in the field symbol [eq o (sup5(→ ), a)], in this way, the effect of raising the arrow upward by 5 pounds can also be achieved. As shown in Figure 4 above.

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