• Vector
  • Synopsis
  • Description
    • Constructors
      • new
      • units
    • Methods
      • check
      • is
      • accuracy
      • round
      • x,y,z
      • clone
      • length
      • print
      • norm
      • dot
      • angle
      • cross
      • add
      • subtract
      • multiply
      • divide
      • equals
      • Operator Overloads
      • Add operator
      • Subtract Operator
      • Multiply Operator
      • Divide Operator
      • Cross Operator
      • Angle Operator
      • Equals Operator
      • Print Operator
  • Export Definitions
  • Credits
    • Author
    • Copyright
    • License

Vector

Manipulate 3D vectors

PhilipRBrenan@yahoo.com, 2004, Perl licence

Synopsis

Example t/vector.t

 #_ Vector _____________________________________________________________
 # Test 3d vectors    
 # philiprbrenan@yahoo.com, 2004, Perl License    
 #______________________________________________________________________
 
 use Math::Zap::Vector vector=>'v', units=>'u';
 use Test::Simple tests=>7;
 
 my ($x, $y, $z) = u();
 
 ok(!$x                            == 1);
 ok(2*$x+3*$y+4*$z                 == v( 2,  3,   4));
 ok(-$x-$y-$z                      == v(-1, -1,  -1));
 ok((2*$x+3*$y+4*$z) + (-$x-$y-$z) == v( 1,  2,   3));
 ok((2*$x+3*$y+4*$z) * (-$x-$y-$z) == -9);  
 ok($x*2                           == v( 2,  0,   0));
 ok($y/2                           == v( 0,  0.5, 0));
 

Description

Manipulate 3 dimensional vectors via operators.

Constructors

new

Create a vector from numbers

units

Unit vectors

Methods

check

Check its a vector

is

Test its a vector

accuracy

Get/Set accuracy for comparisons

round

Round: round to nearest integer if within accuracy of that integer

x,y,z

x,y,z components of vector

clone

Create a vector from another vector

length

Length of a vector

print

Print vector

norm

Normalize vector

dot

Dot product

angle

Angle between two vectors

cross

Cross product

add

Add vectors

subtract

Subtract vectors

multiply

Vector times a scalar

divide

Vector divided by a non zero scalar

equals

Equals to within accuracy

Operator Overloads

Operator overloads

Add operator

Add operator, see "add"

Subtract Operator

Subtract operator.

Multiply Operator

Multiply operator, see "multiply"

Divide Operator

Divide operator, see "divide"

Cross Operator

Cross operator, see "cross"

Angle Operator

Angle operator, see "angle"

Equals Operator

Equals operator, see "equals"

Print Operator

Print a vector, see "print"

Export Definitions

Export "vector", "units", "check", "is"

Credits

Author

philiprbrenan@yahoo.com

Copyright

philiprbrenan@yahoo.com, 2004

License

Perl License.