Introduction to Scilab by Sandeep Nagar

Author:Sandeep Nagar
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA

3.8.2 Cross Products

The built-in function cross() returns the cross product of two input vectors:

1 −−>a=[1 2 3];

2 −−>b=[2 3 4];

3 −−>cross(a,b)

4 ans =

5 − 1. 2. −1.

6 −−>a1=[%t,%t,%f];

7 // One can def ine vector using booleans too

8 −−>a2=[%f,%f,%f];

9 −−>cross(a1,a2)

10 ans =

11 0. 0. 0.

12 −−>cross(a1,a) // cross product of boolean vector with vector of real numbers

13 ans =

14 3. − 3. 1.

3.9 Discrete Mathematics

Scilab has a limited but useful set of built-in functions to work with discrete mathematics as follows:1. primes outputs the primes numbers until the given number

1 −−>x = 30;

2 −−>y = primes(x)

3 y =

4 2. 3. 5. 7. 11. 13. 17. 19. 23. 29.

5

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