How to use a calculator?

Don't you know? Are you a novice? I'm here to tell you 1 Click MS to save the currently displayed value. For example, if we calculate "Sqrt(3)/2", the result is 0.86254037844, which will be used in the following calculations. At this time, we can press the MS key to save. When there is data in the storage area, the status box above MC will be displayed as "M".

2. Click MR to transfer the numbers in the storage area to the display bar, and the numbers in the storage area remain unchanged. Now click the "Clear All" button to clear the data in the display column, and then click the "MR" button, and the data just stored will be displayed again.

3. Click M+ to add the currently displayed number with the number in the storage area, and store the result in the memory. Still following the previous example, we need the value of Sqrt(3)/2 plus 2. Enter 2 here, click M+, and then click Mr. You can see that the correct answer value has been displayed.

Click MC to clear the value in the store. At this time, when we click MC, the m mark in the gray box disappears, and then click MR, the display bar is still 0, and the result just now no longer appears, because MC operation will clear it.