Docs > Class > Vector

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Vector class

Constructor

Constructor 1:

Vector(comlex_str: str) -> Vector by complex type from input.




Constructor 2:

Vector(position: Iterable) -> Vector with two element of iterable.

Caution: The param 'position' can be another vector.




Constructor 3:

Vector(start_point, end_point) -> Vector by linking two points.

Caution: Two points must be typed Vector.

Constructor 4:

Vector(x, y) -> Vector with position is x, y.

Constructor 5:

Vector() -> Vector with position is 0, 0.

Static Method

length_of()

Vector.length_of(vector) -> float is the lenght of vector folllow the fomula sqrt(x**2 + y**2).



get_item_from_complex()

Vector.get_item_from_complex(complex_str) -> Vector with complex (use c for angle complex and i for normal complex), for more details, run print(pphysics.Vector.get_item_from_complex.__doc__) .

Class Method

analyze()

analyze(i_unit_vector, j_unit_vector) -> tuple[_Float], two float number m,n follow fomula vector = m * i + n * j



stem_parallelogram_rule()

stem_parallelogram_rule(i_same_direction_vector, j_same_direction_vector) -> tuple[_Vector], two vector u, v follow fomula vector = u + v (with u and i is the same direction, v and j is the same direction).

Properties

length

Return the length of self, same the method Vector.length_of(self).



position

Return a tuple of x and y.
Can set this property.



x

Return value of x.
Can set this property.



y

Return value of y.
Can set this property.

Math Support

Addition

Can do the addition between two vector.
Ex:Vector(1, 2) + Vector(2, 4) = Vector(3, 6).
With subtraction similar: Vector(3, 4) - Vector(3, 2) = Vector(0, 2)



Multipication

Can do the multipication between two vector or a vector with a number.
Ex: Vector(1, 2) * 3 = Vector(2, 4).
Two vector: Vector (2, 3) * Vector(4, 5) = 23.
With divition to a number similar: Vector(10, 5) / 5 = Vector(2, 1).



Power

Can pow the vector to a number.
Ex: Vector(1, 2) ** 2 = 5. Follow the step, if pow index is odd, the return is Vector, is number if even.



Absolution

Call abs on self will return the length of Vector.



Iteration

Can access to a Vector, get item, set item or run in for loop like a tuple.



toString

Return the string of tuple of x, y.

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