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MathBrainer

A quick and easy math braintrainer free app for keep mind sharp.

It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time, like in queue, while waiting metro or bus, why you're not able to sleep in a queue. When you have only few minutes to spare and no more. Check out it on Google Play!

Main features :

  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.

New future are work-in-progress, stay tuned!

Next features in preparation :

  • Graphic improvements
  • New math games will arrive soon

Want Contribute? Ideas, suggestions, find a bug? Of course yes! Every help would be really appreciated! Check out here for easy how-to : See CONTRIBUTING.md Thank you very much! 😄

About

An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.

Topics

androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern

Resources

Readme

Contributing

Contributing
Activity

Stars

3 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
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MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation

MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation

MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation

MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
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MathBrainer
A quick and easy math braintrainer free app for keep mind sharp.
It is based on easy mental calculation, with timer or not,to do in the very very spare or useless time,
like in queue, while waiting metro or bus, why you're not able to sleep in a queue.
When you have only few minutes to spare and no more.
Check out it on Google Play!
Main features :
  • 14 math games of different kind
  • Incremental skills and difficulties.
  • Easy and quick to use in spare time as casual game for quick secs of braintraining.
  • Relaxing and exclusive design.
New future are work-in-progress, stay tuned!
Next features in preparation :
  •  Graphic improvements
  •  New math games will arrive soon
Want Contribute? Ideas, suggestions, find a bug?
Of course yes! Every help would be really appreciated! Check out here for easy how-to :
See CONTRIBUTING.md
Thank you very much! 😄
About
An easy and simple math braintrainer app, based on mental calculation, with plans of adding new games as you go.
Topics
androidandroid-architecture-componentsbraintrainerlivedata-databindingmathmental-mathmvvm-architectureviewmodel-pattern
Resources
Readme
Contributing
Contributing
Activity
Stars
3 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages