[Overview][Types][Classes][Procedures and functions][Index] | Reference for unit 'matrix' (#rtl)

# Tvector4_double.squared_length

Calculates the squared length of the vector.

## Declaration

Source position: matrix.pp line 131

`function Tvector4_double.squared_length: Double;`

## Description

Calculate the squared length of the vector: squared_length=data[0]**2+data[1]**2+data[2]**2+data[3]**2.

Documentation generated on: Feb 26 2014