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Mathematical calculation：
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Enter the mathematical formula directly and click the "Next" button to get the calculation answer.
It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 3 questions will be solved this time.Among them
☆1 mathematical statistics
☆1 arithmetic calculations
☆1 integer calculations
[1/3 Formula]
Work: Calculate the value of equation (1419+14319+143319+1433319+14333319)/43 .
Question type: Mathematical calculation
Solution:
(1419+14319+143319+1433319+14333319)/43
=15925695/43
=370365
Answer:(1419+14319+143319+1433319+14333319)/43=370365
[ 2/3 data statistics ]
Work: Please make statistics on the following data: 6,7,7,8,8,9,5,3,4,8,12,11 。
Question type: data statistics
Total data：12
The sum：88
Average value：7.33333
Variance：6.38889
Standard deviation：2.52763
*Note: Totally 5 items are counted.
[3/3 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 111111111*999999999
Solution:
111111111*999999999 = 111111110888888889
Column vertical calculation:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | ||||||||||||||
| ✖ | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | |||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | ||||||||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | |||||