#LyX 2.1 created this file. For more info see http://www.lyx.org/ \lyxformat 474 \begin_document \begin_header \textclass article \use_default_options true \maintain_unincluded_children false \language english \language_package default \inputencoding auto \fontencoding global \font_roman default \font_sans default \font_typewriter default \font_math auto \font_default_family default \use_non_tex_fonts false \font_sc false \font_osf false \font_sf_scale 100 \font_tt_scale 100 \graphics default \default_output_format default \output_sync 0 \bibtex_command default \index_command default \paperfontsize default \use_hyperref false \papersize default \use_geometry false \use_package amsmath 1 \use_package amssymb 1 \use_package cancel 1 \use_package esint 1 \use_package mathdots 1 \use_package mathtools 1 \use_package mhchem 1 \use_package stackrel 1 \use_package stmaryrd 1 \use_package undertilde 1 \cite_engine basic \cite_engine_type default \biblio_style plain \use_bibtopic false \use_indices false \paperorientation portrait \suppress_date false \justification true \use_refstyle 1 \index Index \shortcut idx \color #008000 \end_index \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \paragraph_indentation default \quotes_language english \papercolumns 1 \papersides 1 \paperpagestyle default \tracking_changes false \output_changes false \html_math_output 0 \html_css_as_file 0 \html_be_strict false \end_header \begin_body \begin_layout Standard \begin_inset Formula \[ \boldsymbol{\iota}=\left[\begin{array}{ccc} \iota_{00} & \iota_{01} & \iota_{02}\\ \iota_{10} & \iota_{11} & \iota_{12}\\ \iota_{20} & \iota_{21} & \iota_{22} \end{array}\right] \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left[\begin{array}{ccc} {\displaystyle \sum_{i=1}^{n}m_{i}\left(x_{i1}^{2}+x_{i2}^{2}\right)} & -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i0}x_{i1}} & -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i0}x_{i2}}\\ -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i0}x_{i1}} & {\displaystyle \sum_{i=1}^{n}m_{i}\left(x_{i0}^{2}+x_{i2}^{2}\right)} & -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i1}x_{i2}}\\ -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i0}x_{i2}} & -{\displaystyle \sum_{i=1}^{n}m_{i}x_{i1}x_{i2}} & {\displaystyle \sum_{i=1}^{n}}m_{i}\left(x_{i0}^{2}+x_{i1}^{2}\right) \end{array}\right] \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left[\begin{array}{ccc} \left(x_{i1}^{2}+x_{i2}^{2}\right) & -x_{i0}x_{i1} & -x_{i0}x_{i2}\\ -x_{i0}x_{i1} & \left(x_{i0}^{2}+x_{i2}^{2}\right) & -x_{i1}x_{i2}\\ -x_{i0}x_{i2} & -x_{i1}x_{i2} & \left(x_{i0}^{2}+x_{i1}^{2}\right) \end{array}\right] \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left[\begin{array}{ccc} \left|\mathbf{p}_{i}\right|^{2}-x_{i0}^{2} & -x_{i0}x_{i1} & -x_{i0}x_{i2}\\ -x_{i0}x_{i1} & \left|\mathbf{p}_{i}\right|^{2}-x_{i1}^{2} & -x_{i1}x_{i2}\\ -x_{i0}x_{i2} & -x_{i1}x_{i2} & \left|\mathbf{p}_{i}\right|^{2}-x_{i2}^{2} \end{array}\right] \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\left[\begin{array}{ccc} \left|\mathbf{p}_{i}\right|^{2} & 0 & 0\\ 0 & \left|\mathbf{p}_{i}\right|^{2} & 0\\ 0 & 0 & \left|\mathbf{p}_{i}\right|^{2} \end{array}\right]-\left[\begin{array}{ccc} x_{i0}^{2} & x_{i0}x_{i1} & x_{i0}x_{i2}\\ x_{i0}x_{i1} & x_{i1}^{2} & x_{i1}x_{i2}\\ x_{i0}x_{i2} & x_{i1}x_{i2} & x_{i2}^{2} \end{array}\right]\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\left|\mathbf{p}_{i}\right|^{2}\mathbf{I}-\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left|\mathbf{p}_{i}\right|^{2}\mathbf{I}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top} \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}\mathbf{I}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top} \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)^{\top}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)\mathbf{I}-\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)^{\top} \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}^{\top}-\boldsymbol{\mu}^{\top}\right)\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)\mathbf{I}-\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)\left(\mathbf{p}_{i}^{\top}-\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}^{\top}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)-\boldsymbol{\mu}^{\top}\left(\mathbf{p}_{i}-\boldsymbol{\mu}\right)\right)\mathbf{I}-\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}\left(\mathbf{p}_{i}^{\top}-\boldsymbol{\mu}^{\top}\right)-\boldsymbol{\mu}\left(\mathbf{p}_{i}^{\top}-\boldsymbol{\mu}^{\top}\right)\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\mathbf{p}_{i}^{\top}\boldsymbol{\mu}-\boldsymbol{\mu}^{\top}\mathbf{p}_{i}+\boldsymbol{\mu}^{\top}\boldsymbol{\mu}\right)\mathbf{I}-\sum_{i=1}^{n}m_{i}\left(\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-\mathbf{p}_{i}\boldsymbol{\mu}^{\top}-\boldsymbol{\mu}\mathbf{p}_{i}^{\top}+\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\boldsymbol{\mu}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}^{\top}\mathbf{p}_{i}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}^{\top}\boldsymbol{\mu}\right)\mathbf{I}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\boldsymbol{\mu}^{\top}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\right)\boldsymbol{\mu}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}^{\top}\mathbf{p}_{i}+\left(\sum_{i=1}^{n}m_{i}\right)\boldsymbol{\mu}^{\top}\boldsymbol{\mu}\right)\mathbf{I}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\right)\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\right)\boldsymbol{\mu}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}^{\top}\mathbf{p}_{i}+\left(\sum_{i=1}^{n}m_{i}\right)\boldsymbol{\mu}^{\top}\boldsymbol{\mu}\right)\mathbf{I}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-\left(\sum_{i=1}^{n}m_{i}\right)\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\mu}=\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{{\displaystyle \sum_{k=1}^{n}}m_{k}}=\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M} \] \end_inset \end_layout \begin_layout Standard \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\right)\boldsymbol{\mu}-\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}^{\top}\mathbf{p}_{i}+M\boldsymbol{\mu}^{\top}\boldsymbol{\mu}\right)\mathbf{I}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\right)\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}-\sum_{i=1}^{n}m_{i}\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)^{\top}\mathbf{p}_{i}+M\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)^{\top}\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)\right)\mathbf{I}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{\left({\displaystyle \sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)}{M}-\sum_{i=1}^{n}m_{i}\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)^{\top}\mathbf{p}_{i}+\frac{\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}^{\top}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)}{M}\right)\mathbf{I}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\sum_{i=1}^{n}m_{i}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}^{\top}\right)\mathbf{p}_{i}\right)\mathbf{I}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}^{\top}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\sum_{i=1}^{n}m_{i}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}^{\top}\right)\mathbf{p}_{i}\right)^{\top}+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}^{\top}\left(\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}\right)^{\top}-\left(\frac{1}{M}\sum_{i=1}^{n}m_{i}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}^{\top}\right)\mathbf{p}_{i}\right)^{\top}\right)+\left(-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)+\left(\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\boldsymbol{\mu}^{\top}+\sum_{i=1}^{n}m_{i}\boldsymbol{\mu}\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-M\boldsymbol{\mu}\boldsymbol{\mu}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)+\left(\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)^{\top}+\sum_{i=1}^{n}m_{i}\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-M\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)+\left(\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)^{\top}+\sum_{i=1}^{n}m_{i}\left(\frac{{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}}{M}\right)\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}-\frac{1}{M}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\mathbf{I}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)+\left(\frac{1}{M}\sum_{i=1}^{n}m_{i}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}^{\top}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)\mathbf{I}+\left(\frac{1}{M}\sum_{i=1}^{n}m_{i}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\mathbf{p}_{i}^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right)^{\top} \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)\mathbf{I}+\left(\frac{1}{M}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right) \] \end_inset \end_layout \begin_layout Standard -------------------------------------------------------------------------------- ---------------------------------------- \end_layout \begin_layout Standard \begin_inset Formula \[ \boldsymbol{\iota}_{n}=\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}^{\top}\mathbf{p}_{i}-\frac{1}{M_{n}}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)\right)\mathbf{I}+\left(\frac{1}{M_{n}}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n}=\left(\sum_{i=1}^{n}m_{i}\left|\mathbf{p}_{i}\right|^{2}-\frac{1}{M_{n}}\left|{\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right|^{2}\right)\mathbf{I}+\left(\frac{1}{M_{n}}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)\left({\displaystyle \sum_{j=1}^{n}}m_{j}\mathbf{p}_{j}\right)^{\top}-\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\mathbf{p}_{i}^{\top}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n}=\left(\alpha_{n}-\frac{1}{M_{n}}\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}\right)\mathbf{I}+\left(\frac{1}{M_{n}}\boldsymbol{\beta}_{n}\boldsymbol{\beta}_{n}^{\top}-\boldsymbol{\gamma}_{n}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n+1}=\left(\alpha_{n+1}-\frac{1}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n+1}^{\top}\boldsymbol{\beta}_{n+1}\right)\mathbf{I}+\left(\frac{1}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n+1}\boldsymbol{\beta}_{n+1}^{\top}-\boldsymbol{\gamma}_{n+1}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n+1}-\boldsymbol{\iota}_{n}=\left(\alpha_{n+1}-\alpha_{n}\right)\mathbf{I}-\frac{1}{M_{n+1}}\left(\boldsymbol{\beta}_{n+1}^{\top}\boldsymbol{\beta}_{n+1}\mathbf{I}-\boldsymbol{\beta}_{n+1}\boldsymbol{\beta}_{n+1}^{\top}\right)+\frac{1}{M_{n}}\left(\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}\mathbf{I}-\boldsymbol{\beta}_{n}\boldsymbol{\beta}_{n}^{\top}\right)-\left(\boldsymbol{\gamma}_{n+1}-\boldsymbol{\gamma}_{n}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n+1}-\boldsymbol{\iota}_{n}=\left(\alpha_{n+1}-\alpha_{n}\right)\mathbf{I}-\frac{M_{n}}{M_{n+1}}\frac{1}{M_{n}}\left(\boldsymbol{\beta}_{n+1}^{\top}\boldsymbol{\beta}_{n+1}\mathbf{I}-\boldsymbol{\beta}_{n+1}\boldsymbol{\beta}_{n+1}^{\top}\right)+\frac{1}{M_{n}}\left(\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}\mathbf{I}-\boldsymbol{\beta}_{n}\boldsymbol{\beta}_{n}^{\top}\right)-\left(\boldsymbol{\gamma}_{n+1}-\boldsymbol{\gamma}_{n}\right) \] \end_inset \begin_inset Formula \[ \boldsymbol{\iota}_{n+1}-\boldsymbol{\iota}_{n}=\left(\alpha_{n+1}-\alpha_{n}\right)\mathbf{I}-\frac{1}{M_{n}}\left[\left(\frac{M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n+1}^{\top}\boldsymbol{\beta}_{n+1}+\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}\right)\mathbf{I}-\left(\frac{M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n+1}\boldsymbol{\beta}_{n+1}^{\top}+\boldsymbol{\beta}_{n}\boldsymbol{\beta}_{n}^{\top}\right)\right]-\left(\boldsymbol{\gamma}_{n+1}-\boldsymbol{\gamma}_{n}\right) \] \end_inset \begin_inset Formula \[ \alpha_{n+1}-\alpha_{n}=\sum_{i=1}^{n+1}m_{i}\left|\mathbf{p}_{i}\right|^{2}-\sum_{i=1}^{n}m_{i}\left|\mathbf{p}_{i}\right|^{2} \] \end_inset \begin_inset Formula \[ \alpha_{n+1}-\alpha_{n}=m_{n+1}\left|\mathbf{p}_{n+1}\right|^{2} \] \end_inset \begin_inset Formula \[ \frac{M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n+1}^{\top}\boldsymbol{\beta}_{n+1}+\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}=\frac{M_{n}}{M_{n}+m_{n+1}}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}+m_{n+1}\mathbf{p}_{n+1}\right)^{\top}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}+m_{n+1}\mathbf{p}_{n+1}\right)+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right) \] \end_inset \begin_inset Formula \[ =\frac{M_{n}}{M_{n}+m_{n+1}}\left(\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}+m_{n+1}\mathbf{p}_{n+1}^{\top}\right)\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}+m_{n+1}\mathbf{p}_{n+1}\right)+\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right)^{\top}\left(\sum_{i=1}^{n}m_{i}\mathbf{p}_{i}\right) \] \end_inset \begin_inset Formula \[ =\frac{M_{n}}{M_{n}+m_{n+1}}\left(\boldsymbol{\beta}_{n}^{\top}+m_{n+1}\mathbf{p}_{n+1}^{\top}\right)\left(\boldsymbol{\beta}_{n}+m_{n+1}\mathbf{p}_{n+1}\right)+\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n} \] \end_inset \begin_inset Formula \[ =\frac{M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}+2m_{n+1}\frac{M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n}^{\top}\mathbf{p}_{n+1}+m_{n+1}^{2}\frac{M_{n}}{M_{n}+m_{n+1}}\mathbf{p}_{n+1}^{\top}\mathbf{p}_{n+1}+\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n} \] \end_inset \begin_inset Formula \[ =\left(\frac{2M_{n}+m_{n+1}}{M_{n}+m_{n+1}}\right)\boldsymbol{\beta}_{n}^{\top}\boldsymbol{\beta}_{n}+\frac{2m_{n+1}M_{n}}{M_{n}+m_{n+1}}\boldsymbol{\beta}_{n}^{\top}\mathbf{p}_{n+1}+\frac{m_{n+1}^{2}M_{n}}{M_{n}+m_{n+1}}\mathbf{p}_{n+1}^{\top}\mathbf{p}_{n+1} \] \end_inset \begin_inset Formula \[ =\frac{1}{M_{n}+m_{n+1}}\left[\boldsymbol{\beta}_{n}^{\top}\left(\left(2M_{n}+m_{n+1}\right)\boldsymbol{\beta}_{n}+2m_{n+1}M_{n}\mathbf{p}_{n+1}\right)+m_{n+1}^{2}M_{n}\mathbf{p}_{n+1}^{\top}\mathbf{p}_{n+1}\right] \] \end_inset \end_layout \end_body \end_document