From f75dfb5d736b644ad2649452c3056ba71be856b8 Mon Sep 17 00:00:00 2001 From: mattkae Date: Sun, 13 Nov 2022 19:51:56 -0500 Subject: The dumbest of blogging systems --- posts/hello_world.html | 41 ++++++++++ posts/linear_system_solver.html | 102 ----------------------- posts/linear_system_solver.html~ | 77 ------------------ posts/linear_system_solver.js | 172 --------------------------------------- posts/linear_system_solver.js~ | 106 ------------------------ 5 files changed, 41 insertions(+), 457 deletions(-) create mode 100644 posts/hello_world.html delete mode 100644 posts/linear_system_solver.html delete mode 100644 posts/linear_system_solver.html~ delete mode 100644 posts/linear_system_solver.js delete mode 100644 posts/linear_system_solver.js~ (limited to 'posts') diff --git a/posts/hello_world.html b/posts/hello_world.html new file mode 100644 index 0000000..27106e1 --- /dev/null +++ b/posts/hello_world.html @@ -0,0 +1,41 @@ + + + + + + + + + Matthew Kosarek + + + +

Matthew Kosarek

+ +

Hello, World!

Created 11/12/2022, 8:48:06 PM. Last updated: 11/13/2022, 7:51:38 PM

+ Hello, world! +

+ This is the first test of my simple, static blogging system. My goal is to avoid using anything too heavy and, instead, provide a simple script that will get run whenever I update a blog post. Heck, I could even set it up to a cronjob to refresh them everyday. But perhaps that is overkill for today 😆. I am satisfied with how it current works. +

+ Expect to see some updates on Greek philosophy, emacs, and Linux coming soon to a website near you! +

+ +

+ + + \ No newline at end of file diff --git a/posts/linear_system_solver.html b/posts/linear_system_solver.html deleted file mode 100644 index a8b17e5..0000000 --- a/posts/linear_system_solver.html +++ /dev/null @@ -1,102 +0,0 @@ - -

Linear Systems Solver

2021-08-01 by Matthew Kosarek

- I wanted to write a little algorithm to visually solve linear systems of equations for fun. I am only going to deal with 3x3 matrices for now, but I'll make it so that I can easily extend it to more matrices in the future if I think that would be cool. - -

- -

- × -

- = -

- -

- - -

- - - - -

diff --git a/posts/linear_system_solver.html~ b/posts/linear_system_solver.html~ deleted file mode 100644 index a280a8b..0000000 --- a/posts/linear_system_solver.html~ +++ /dev/null @@ -1,77 +0,0 @@ - -

Linear Systems Solver

2021-08-01 by Matthew Kosarek

- × -

- = -

- -

- - -

- - - - -

diff --git a/posts/linear_system_solver.js b/posts/linear_system_solver.js deleted file mode 100644 index 9eb901f..0000000 --- a/posts/linear_system_solver.js +++ /dev/null @@ -1,172 +0,0 @@ -var $ = window.$, - rows = 3, - columns = 3, - currentLhs = [], // rows x columns matrix - currentRhs = []; // rows x 1 matrix - solutionContainer = $('#solution_container'); - -function main() { - $('#reset_button').on('click', onResetClicked); - $('#solve_button').on('click', onSolveClicked); - resetView(); -} - -function resetView() { - renderLHS(); - renderUnknowns(); - renderRHS(); - - currentLhs = []; - currentRhs = []; - for (var r = 0; r < rows; r++) { - for (var c = 0; c < columns; c++) { - currentLhs.push(0); - } - } - - for (var otherR = 0; otherR < rows; otherR++) { - currentRhs.push(0); - } - - solutionContainer.empty(); -} - -// Renders for the input container. -function renderLHS() { - var lhs = $('#matrix_lhs').empty(), - addCell = function(index) { - $('').type('number').val(0).on('change', function(event) { - currentLhs[index] = Number(event.target.value); - }).appendTo(lhs); - }; - - for (var r = 0; r < rows; r++) { - for (var c = 0; c < columns; c++) { - addCell((r * rows) + c); - } - } -} - -function renderUnknowns() { - var unknownsContainer = $('#unknown_variables').empty(); - - for (var r = 0; r < columns; r++) { - var cell = $('').disabled(true).val(String.fromCharCode('x'.charCodeAt(0) + r).toUpperCase()); - unknownsContainer.append(cell); - } -} - -function renderRHS() { - var rhs = $('#matrix_rhs').empty(), - addCell = function(index) { - $('').type('number').val(0).on('change', function(event) { - currentRhs[index] = Number(event.target.value); - }).appendTo(rhs); - }; - - for (var r = 0; r < rows; r++) { - addCell(r); - } -} - -// Renders for the augmented matrix container -function renderAugmentedMatrix(lhs, rhs) { - var container = $('

').addClass('augmented_matrix_container'), - lhsContainer = $('

').appendTo(container), - rhsContainer = $('

').appendTo(container), - addLhsCell = function(index) { - $('').type('number').val(lhs[index]).disabled(true).appendTo(lhsContainer); - }, - addRhsCell = function(index) { - $('').type('number').val(rhs[index]).disabled(true).appendTo(rhsContainer); - }; - - for (var r = 0; r < rows; r++) { - for (var c = 0; c < columns; c++) { - addLhsCell(r * rows + c); - } - } - - for (var otherR = 0; otherR < rows; otherR++) { - addRhsCell(otherR); - } - - return container; -} - -// Solver helper functions -function findLargestValue(c, rowStart) { - var largestValue = 0, - largestRow = -1; - for (var r = rowStart; r < rows; r++) { - var currValue = Math.abs(currentLhs[r * rows + c]); - if (currValue > largestValue) { - largestValue = currValue; - largestRow = r; - } - } - return { - row: largestRow, - value: largestValue - }; -} - -function swapRows(r1, r2) { - if (r1 === r2) { - return; - } - - for (var c = 0; c < columns; c++) { - var temp = currentLhs[r1 * row + c]; - currentLhs[r1 * rows + c] = currentLhs[r2 * row + c]; - currentLhs[r2 * rows + c] = temp; - } - - var rhsTmp = currentRhs[r1]; - currentRhs[r1] = currentRhs[r2]; - currentRhs[r2] = rhsTmp; -} - -function multiplyRow(r, scale) { - for (var c = 0; c < columns; c++) { - currentLhs[r * rows + c] *= scale; - } - - currentRhs[r] *= scale; -} - -function addRow(r, a) { - for (var c = 0; c < columns; c++) { - currentLhs[r * rows + c] += a; - } - - currentRhs[r] += a; -} - -// Callbacks for actions -function onResetClicked() { - resetView(); -} - -function onSolveClicked() { - var rowStart = 0; - for (var c = 0; c < columns; c++) { - var largestForColumn = findLargestValue(c, rowStart); - if (largestForColumn.row >= 0) { - swapRows(rowStart, largestForColumn.row); - multiplyRow(rowStart, 1.0 / largestForColumn.value); - - for (var r = 0; r < rows; r++) { - if (r === rowStart) continue; - - } - } - - rowStart++; - } - - solutionContainer.append(renderAugmentedMatrix(currentLhs, currentRhs)); - solutionContainer.append(renderAugmentedMatrix(currentLhs, currentRhs)); -} - -main(); diff --git a/posts/linear_system_solver.js~ b/posts/linear_system_solver.js~ deleted file mode 100644 index 33fc026..0000000 --- a/posts/linear_system_solver.js~ +++ /dev/null @@ -1,106 +0,0 @@ -var $ = window.$, - rows = 3, - columns = 3, - currentLhs = [], // rows x columns matrix - currentRhs = []; // rows x 1 matrix - solutionContainer = $('#solution_container'); - -function main() { - $('#reset_button').on('click', onResetClicked); - $('#solve_button').on('click', onSolveClicked); - resetView(); -} - -function resetView() { - renderLHS(); - renderUnknowns(); - renderRHS(); - - currentLhs = []; - currentRhs = []; - for (var r = 0; r < rows; r++) { - for (var c = 0; c < columns; c++) { - currentLhs.push(0); - } - } - - for (var otherR = 0; otherR < rows; otherR++) { - currentRhs.push(0); - } - - solutionContainer.empty(); -} - -// Renders for the input container. -function renderLHS() { - var lhs = $('#matrix_lhs').empty(), - addCell = function(index) { - $('').type('number').val(0).on('change', function(event) { - currentLhs[index] = Number(event.target.value); - }).appendTo(lhs); - }; - - for (var r = 0; r < rows; r++) { - for (var c = 0; c < columns; c++) { - addCell((r * rows) + c); - } - } -} - -function renderUnknowns() { - var unknownsContainer = $('#unknown_variables').empty(); - - for (var r = 0; r < columns; r++) { - var cell = $('').disabled(true).val(String.fromCharCode('x'.charCodeAt(0) + r).toUpperCase()); - unknownsContainer.append(cell); - } -} - -function renderRHS() { - var rhs = $('#matrix_rhs').empty(), - addCell = function(index) { - $('').type('number').val(0).on('change', function(event) { - currentRhs[index] = Number(event.target.value); - }).appendTo(rhs); - }; - - for (var r = 0; r < rows; r++) { - addCell(r); - } -} - -// Renders for the solution container -function renderAugmentedMatrix(lhs, rhs) { - var container = $('

').addClass('augmented_matrix_container'), - lhsContainer = $('

').appendTo(container), - rhsContainer = $('