Formula of internal difference method
1. A set of associated data list that meet the conditions of interpolation, in which B3, D3, B4, C4 and D4 are known numbers
Calculation formula of interpolation method
X=(D3*(C4-B4)+B3*(D4-C4))/(D4-B4)
RELATED INFORMATIONS
- 1. What is the formula of the successive difference method?
- 2. Successive difference formula Using the puncher to make the paper tape, there are ABCDEFG... Points. Let the distances of ab.bc.cd.de.ef.fg... In the paper tape be s1.s2.s3.s4.s5.s6 respectively, The time interval corresponding to two adjacent points is t. the velocity of the object at point a is va. according to the uniform velocity linear motion formula and the velocity formula, it is proved that the displacement difference of the object passing through in the continuous and equal time interval is a constant, and satisfies s2-s1 = 3-s2 = s4-s3 =... = at ^ 2; The proof process is as follows (hint: s1.s2 is calculated by displacement formula first) It's at ^ 2
- 3. The following formulas can be calculated by the adjustment formula A.(x+1)(1+x) B.(1/2a+b)(b-1/2a) c.(-a+b)(a-b) d.(x^2-y)(x+y^2)
- 4. A formula for calculating compound interest For example, suppose that the principal is 10000 and the monthly income is 10%. Add up the monthly income. That is to say, the principal in the second month is 11000. What is the total income after one year? What is the formula?
- 5. What's the formula for compound interest? For example, if 100000 yuan is calculated at an annual rate of 12%, how much will it be after ten years?
- 6. The algorithm of scientific notation? For example, how to multiply the - 10th power of 1.63 * 10 by the - 9th power of 2.55 * 10?
- 7. Calculating 1024 * 1024 with scientific counting method
- 8. 1 and 2 are represented by scientific notation, 3, 4, 5 are calculated and the results are represented by scientific notation (1)20X50= (2) 2 to the 10th power multiplied by 5 to the 11th power= (3) (1.2 × 10 to the fifth power) × (5 × 10 to the square)= (4) The square of 25 is the fourth power of 4= (5) The square of 3 × the sixth power of 2 × the eighth power of 5=
- 9. 17 cm = () m, using scientific notation, using a simpler method
- 10. Planning cost method, material cost variance rate calculation Suppose a company has 10 tons of materials in stock at the beginning of the period, the planned cost is 17800 yuan, and the material cost difference is 250 yuan; the total cost of purchasing 10 tons of materials this month is 17600 yuan The difference rate of material cost in this month is as follows: (250-200)/(17800+17800)*100%=0.14% The above is an example Is the molecule (250-200) and why not (250 + 200)?
- 11. What are the characteristics of the price amount accounting method
- 12. How to work out the formula for the problem of 4 / 7 of 2 / 5
- 13. When asked about the mathematical formula, 5 out of 7-5 out of 7 + 8 out of 17 + 9 out of 17
- 14. 11 * 10 and 1 / 11, simple formula
- 15. Find the formula of general term: 4 / 8, 5 / 11, 6 / 14, 7 / 17 There are also 1 / 2, 4 / 3, 6 / 5, 8 / 7
- 16. 3-5 + 7-9 + 11-13... + 1995-1997 + 1999 (simple calculation and formula)
- 17. -1 + 3-5 + 7-9 + 11... - 1997 + 1999 how to calculate the formula
- 18. 1, - 2,3, - 4,5, - 6,7, - 8,9, - 10,11 what are the rules of the group of numbers? Use a formula to express each number
- 19. -1,2, - 4,8, - 16,32. According to the law, how can the nth number be expressed by the formula?
- 20. -1,2, - 4,8, - 16,32. According to the law, find the nth number (expressed by the formula containing n) Calculate the following two groups of formulas: (3 × 5) square and 3 × 5 square, [(- 2) × 3] square, and (- 2) square × 3 square. Are the results of each group of two formulas the same? (2) think about what the third power of (AB) equals? (3) guess what the n power of (AB) equals when n is a positive integer? If a = 25 and B = - 3, what is the last digit of a to the power of 2003 and B to the power of 2004?