1. trigonometric function: TAN(45° angle) = 1.
2. Square root: √ 4 = 2.
3. Rounding: round (π) = round (3. 14) = 3.
4. Natural logarithm: LOG(55), this expression is wrong, it should be expressed as LN(55)=4.007, which is about equal to 4.
5. Pythagorean theorem: hook three strands, four strings and five. X=5
6. factorial: 3! =3x2x 1=6
7. Cycle times: 6.9 cycles = 7 cycles
8. Division: 16/2 = 8
9. Multiplication: 3x3=9
10. Gravity acceleration: g=9.8, rounded to 10.
1 1. Addition: 5 and 6 add together = 1 1, and the true and false Arabic numerals are put together. The real Arabic numeral 5 is written as 0, and the fake Arabic numeral 6 is actually an Indian numeral.
12. Binary:1100 =1000+100, which means 8+4 = 12. The small 2 in the lower right corner represents binary.
Answer over.