Determination of Cross Product and Absolute Value of a vector.

Model : CASIO fx-570MS, CASIO fx-991MS

Manual determination of cross product requires determinant which is confusing and may provide unwanted error in result.You can easily create vectors in calculator and perform cross product within a minute.

Example: Find the cross product of vectors A= 3i-2j+5k and B= i+4j-3k. Also find the absolute value of vector A.(Ans: -14i+14j+14k and 6.1644)

Solution:

How to solve basic problems of statistics

Model : CASIO  fx-991MS, CASIO fx-570MS, CASIO  fx-100MS

Statistics is a very important part of mathematics. Mean ( x̅ ), Standard deviation(σ_n, σ_n-1), Σx, Σx² etc can be calculated with calculator for any given data.

Example: The numbers of students of different class of a school are 55,58,51,63,55,59,51,60,53,55.Calculate mean ( x̅ ), Standard Deviation (σ_n, σ_n-1), Σx, Σx² for the these

How to integrate a function (Definite Integral)

Model : CASIO fx-570MS, CASIO fx-991MS

Calculator can easily perform definite integration (integration with limit). Mainly three inputs are required for the operation.They are a function with variable x, lower limit, upper limit.

Example: What is the value of  ∫₂⁵(x³-5x-3)dx ?
              Options: a) 129/12, b) 363/4, c) 65/7, d) 1/2