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Scientific Calculator Hub

A focused workspace of scientific calculators for crystallography, materials science and experimental research.
SCIENTIFIC TOOLS / CALCULATOR HUB 
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    <h1>Calculations,<br><span>made practical.</span></h1>
    <p class="calc-hub-lede">A growing set of research tools for the calculations that support materials development, crystallographic analysis and laboratory work.</p>
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  <aside class="calc-hub-summary" aria-label="Calculator collection summary">
    <div><strong>02</strong><span>TOOLS IN COLLECTION</span></div>
    <div><strong>01</strong><span>AVAILABLE NOW</span></div>
    <div><strong>01</strong><span>IN DEVELOPMENT</span></div>
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<a class="calc-hub-jump" href="#tool-library">Browse the collection <span>↓</span></a>
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    <div class="calc-hub-kicker">THE TOOLKIT</div>
    <h2 id="calc-hub-library-title">Research calculators</h2>
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  <p>Choose a tool to open its dedicated workspace. Each calculator is designed around a specific research task.</p>
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<a class="calc-tool-featured" href="https://mostafa-kadi.github.io/crystallography-calculators/" target="_blank" rel="noopener">
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      <span class="calc-tool-index">01 / CRYSTALLOGRAPHY</span>
      <span class="calc-tool-available"><i></i> AVAILABLE</span>
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    <h3>Crystallography Calculators</h3>
    <p class="calc-tool-description">A practical toolkit for X-ray diffraction and crystal-structure calculations. Move from measured diffraction data to lattice parameters and key crystallographic quantities.</p>
    <div class="calc-tool-capabilities">
      <span>d-spacing</span><span>Lattice parameters</span><span>Unit-cell volume</span><span>Theoretical density</span>
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    <span class="calc-tool-action">Open calculator workspace <b>↗</b></span>
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  <div class="calc-tool-workflow" aria-label="Crystallography calculation workflow">
    <div class="calc-workflow-label"><span>CRYSTALLOGRAPHY WORKFLOW</span><span>01—04</span></div>
    <div class="calc-workflow-step"><span>01</span><div><strong>XRD input</strong><small>Peak positions · hkl · d-spacing</small></div><i>↘</i></div>
    <div class="calc-workflow-step"><span>02</span><div><strong>Cell parameters</strong><small>a, b, c · α, β, γ</small></div><i>↘</i></div>
    <div class="calc-workflow-step"><span>03</span><div><strong>Unit-cell metrics</strong><small>Volume · crystal system</small></div><i>↘</i></div>
    <div class="calc-workflow-step"><span>04</span><div><strong>Derived quantities</strong><small>Theoretical density · related values</small></div><i>✓</i></div>
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  <div class="calc-upcoming-index">02</div>
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    <div class="calc-tool-meta">
      <span class="calc-tool-index">CHEMICAL PREPARATION</span>
      <span class="calc-tool-development">IN DEVELOPMENT</span>
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    <h3>Chemical Synthesis Calculators</h3>
    <p>Plan precursor masses and synthesis batches, calculate doping concentrations, prepare solutions and evaluate oxygen non-stoichiometry.</p>
    <div class="calc-tool-capabilities"><span>Precursor mass</span><span>Stoichiometry</span><span>Molarity &amp; dilution</span><span>Oxygen non-stoichiometry</span></div>
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  <div class="calc-upcoming-state"><span class="calc-state-icon">Ⅱ</span><strong>Coming soon</strong><small>Under development</small></div>
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