In Word operations, when we encounter mathematical formulas, we often have to use the formula Editor to input, in fact, in addition to the formula Editor, in Word there is a tool to edit the formula: field. With this tool, it is more than sufficient to deal with general mathematical formula editing.
The input of a fraction
If you use the domain to solve, then the fractional input is very simple. For example, we want to enter the number three-fourths, as long as the "ctrl+f9" in the appropriate position to press the shortcut key, will produce a space (a pair of curly braces). Position the mouse in braces and enter EQ F (3,4), then right-click and click "Toggle field Code" in the pop-up menu to get the standard fraction three-fourths, as shown in Figure 1. Other fractions can be copied to write without worrying about the horizontal line in the fraction, which automatically adjusts the length according to the length of the numerator and denominator. It is important to note that the field code must be entered in the Half-width state of the English language, and that the braces cannot be entered manually and can only be done with a shortcut key.
Second, with the root of the fractional
First of all, a simple three times under the root of two such a digital input bar. Or, first press the "CTRL+F9" shortcut key, and then enter the field code in curly braces eq (3, 2) ", select the number" 3 "in the code, the size of its small, and then press the right menu in the" switch field code "command, you can get the number three times the root two, as shown in Figure 2.
Obviously, if you want to get two square roots, you can just change the number "3" in the Code to "2". However, usually our habit is two square root of the number "2" is omitted to write, so, the first number in the field code we can also skip directly, write the Code "EQ (, 2)" on the line.
As for the fractional with the square root, it is simple. As long as the fractional and radical code together, in the appropriate position to change it. So three-seconds times root under two such numbers, the field code should be "Eq f ((3,2), 2)". Press the "switch field code", the effect is also OK? Look at Figure 2.
Three, input vector symbols
A vector symbol is an arrow symbol above the English alphabet. This requirement can also be easily achieved with domain functionality.
Enter the field code "EQ O (→,a)" In curly braces, where the arrow symbols can be implemented using the "Insert → symbol" method. If we click on the "Toggle field Code" command in the right-click menu, you will find that the result is that the arrows overlap the letters, not what we want. So, how do you make the arrows move up?
Select the arrow in the field code, right-click, and click Font on the pop-up menu to open the Font dialog box. Tap the Character Spacing tab, click the Position drop-down list, select Promote, and set the lifting value to "5 points" with the following "point value" adjustment button, as shown in Figure 3.
Once you're sure, you can move the arrow symbol up by 5 points, so that you're moving to the top of the character. Now, select the field code and click on the "switch field code" command to get the desired effect, as shown in Figure 4.
If you think this is a hassle, you can also enter the code "EQ O (SUP5)" In the field notation so that you can also achieve an increase of 5 points up the arrow. As shown in Figure 4 above.
It's not difficult, is it? If you often want to enter mathematical formulas, but did not install the formula Editor or tired of the formula editor, then, you may try to test the field code to write formulas, hehe, it must be very good!
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