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How to Solve Vectors Using Casio fx991es

Addition Of Vectors
(1). If a Vector A = 3i +3j -k
          Vector B = 2i + 4j + 5k
          Vector C = 3i - 2j + 4k
    Find Vector A + B + C
Solution Using Casio fx991es
[ON] [MODE] [8] [1] (VECT A) [1] (WE HAVE 3 ROWS) [3] [=] [3] [=] [-] [1] [=] [AC] [SHIFT] [5] [1] (DIM) [2] (VECT B) [1] [2] [=] [4] [=] [5] [=] [AC] [SHIFT] [5] [1] (DIM) [3] (VECT C) [1] [3] [=] [-] [2] [=] [4] [=] [AC] [SHIFT] [5] [3] (VECT A) [+] [SHIFT] [5] [4] (VECT B) [+] [SHIFT] [5] [5] (VECT C) [=]
Ans = 8i + 5j + 8k
 
Subtraction Of Vectors
​​​​​​(2). If Vector A = 3i + 2j + 4k
      Vector B = 2i - 3j + 5k
 Find Vector A - B
Solution Using Casio fx991es
[SHIFT] [9] [3] [=] [AC] [MODE] [8] [1] (VECT A) [1] (B/C IT HAS 3 ROWS) [3] [=] [2] [=] [4] [=] [AC] [SHIFT] [5] [1] [2] (VECT B) [1] [2] [=] [-] [3] [=] [5] [=] [AC] [SHIFT] [5] [3] (VECT A) [-] [SHIFT] [5] [4] (VECT B) [=]
Ans = i + 5j -k
NB: After inputing the values and want to check each data entered or to correct entered values press [SHIFT] [5] [2] (DATA) EITHER PRESS [1] FOR (VECT A) OR 2 FOR (VECT B) THEN YOU CAN NOW CHECK IT OR CORRECT IT THEN.
 
Multiplication Of Vectors Using Dot Product (.)
(3). If Vector A = 3i + 2j - 3k
     Vector B = 2i + 3j + 4k
Find Vector A . B
Solution Using Casio fx991es
[SHIFT] [9] [3] [=] [AC] [MODE] [8] [1] (VECT A) [1] [3] [=] [2] [=] [-] [3] [=] [AC] [SHIFT] [5] [1] [2] (VECT B) [1] [2] [=] [3] [=] [4] [=] [AC] [SHIFT] [5] [3] (VECT A) [SHIFT] [5] [7] (DOT) [SHIFT] [5] [4] (VECT B) [=]
Ans = 0
 
Multiplication Of Vectors Using Cross Product (×) or (^)
(4). If Vector A = 2i + 3j +k
        Vector B = 3i - 2j + 3k
          Find Vector A×B or A^B
Solution Using Casio fx991es
[SHIFT] [9] [3] [=] [AC] [MODE] [8] [1] (VECT A) [1] [2] [=] [3] [=] [1] [=] [AC] [SHIFT] [5] [1] [2] (VECT B) [1] [3] [=] [-] [2] [=] [3] [=] [AC] [SHIFT] [5] [3] (VECT A) [×] (MULTIPLICATION SIGN) [SHIFT] [5] [4] (VECT B) [=]
Ans = 11i - 3j - 13k
NB: This can help to solve unit angles between Vectors easier.

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