{"id":9,"date":"2026-04-17T09:04:01","date_gmt":"2026-04-17T09:04:01","guid":{"rendered":"https:\/\/grafischerekenmachine.com\/?page_id=9"},"modified":"2026-04-17T21:54:32","modified_gmt":"2026-04-17T21:54:32","slug":"grafische-rekenmachine","status":"publish","type":"page","link":"https:\/\/grafischerekenmachine.com\/","title":{"rendered":"Online Grafische Rekenmachine"},"content":{"rendered":"\n<style>\n  #gc { font-family: 'Segoe UI', Tahoma, sans-serif; max-width: 540px; margin: 0 auto 2rem; width: 100%; box-sizing: border-box; }\n  #gc * { box-sizing: border-box; }\n\n  \/* Device shell *\/\n  .gc-device { background: linear-gradient(160deg, #1e293b 0%, #0f172a 100%); border-radius: 24px; padding: 14px 14px 20px; box-shadow: 0 25px 60px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08); }\n\n  \/* Screen bezel *\/\n  .gc-screen-bezel { background: #0a0e1a; border-radius: 12px; padding: 7px; margin-bottom: 14px; box-shadow: inset 0 4px 12px rgba(0,0,0,0.8); }\n  .gc-screen { background: #f5f7f5; border-radius: 6px; height: 280px; display: flex; flex-direction: column; overflow: hidden; }\n\n  \/* Screen tabs *\/\n  .gc-stabs { display: flex; background: #e4e8e4; border-bottom: 1px solid #c8d0c8; flex-shrink: 0; }\n  .gc-stab { flex: 1; padding: 5px 2px; border: none; background: transparent; cursor: pointer; font-size: 0.68rem; font-weight: 700; color: #6b7280; font-family: inherit; text-transform: uppercase; letter-spacing: 0.03em; }\n  .gc-stab.active { background: #166534; color: #fff; }\n\n  \/* Panels *\/\n  .gc-panel { flex: 1; display: none; overflow: hidden; flex-direction: column; min-height: 0; }\n  .gc-panel.active { display: flex; }\n\n  \/* \u2500\u2500 Calc panel \u2500\u2500 *\/\n  .gc-history { flex: 1; overflow-y: auto; padding: 6px 10px 2px; display: flex; flex-direction: column; gap: 2px; }\n  .gc-hist-expr { font-size: 0.88rem; color: #4b5563; text-align: right; font-family: 'Courier New', monospace; }\n  .gc-hist-result { font-size: 1.35rem; font-weight: 700; color: #166534; text-align: right; font-family: 'Courier New', monospace; line-height: 1.3; }\n  .gc-hist-error { font-size: 0.82rem; color: #dc2626; text-align: right; font-family: 'Courier New', monospace; }\n  .gc-hist-sep { height: 1px; background: #d1d5db; margin: 3px 0; }\n  .gc-input-line { border-top: 1px solid #c8d0c8; background: #eaf0ea; padding: 7px 10px; display: flex; align-items: center; gap: 5px; flex-shrink: 0; min-height: 40px; }\n  .gc-prompt { color: #166534; font-weight: 700; font-size: 1rem; }\n  #gc-expr { flex: 1; font-size: 1rem; font-family: 'Courier New', monospace; color: #111827; word-break: break-all; min-width: 0; }\n  .gc-caret { color: #166534; font-weight: 300; font-size: 1.2rem; animation: gc-blink 1s step-end infinite; }\n  @keyframes gc-blink { 0%,100%{opacity:1} 50%{opacity:0} }\n\n  \/* \u2500\u2500 Y= panel \u2500\u2500 *\/\n  .gc-yfn-list { flex: 1; padding: 6px 8px; display: flex; flex-direction: column; gap: 3px; overflow-y: auto; }\n  .gc-yfn-row { display: flex; align-items: center; gap: 6px; padding: 5px 6px; border-bottom: 1px solid #d1d5db; cursor: pointer; }\n  .gc-yfn-row.focused-fn { background: #dff0df; }\n  .gc-yfn-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }\n  .gc-yfn-label { font-size: 0.85rem; font-weight: 700; font-family: 'Courier New', monospace; min-width: 22px; }\n  .gc-yfn-eq { font-size: 0.85rem; color: #374151; }\n  .gc-yfn-expr { flex: 1; font-size: 0.88rem; font-family: 'Courier New', monospace; color: #111827; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }\n  .gc-yfn-expr.empty { color: #9ca3af; }\n  .gc-yfn-cursor { color: #166534; font-weight: 300; animation: gc-blink 1s step-end infinite; }\n  .gc-yfn-hint { padding: 6px 10px; font-size: 0.72rem; color: #6b7280; border-top: 1px solid #d1d5db; flex-shrink: 0; }\n\n  \/* \u2500\u2500 Graph panel \u2500\u2500 *\/\n  .gc-graph-wrap { flex: 1; position: relative; overflow: hidden; min-height: 0; }\n  #gc-canvas { display: block; width: 100%; height: 100%; cursor: crosshair; }\n  .gc-coord-badge { position: absolute; bottom: 4px; right: 6px; font-size: 0.7rem; color: #374151; font-family: 'Courier New', monospace; background: rgba(245,247,245,0.88); padding: 2px 6px; border-radius: 4px; pointer-events: none; }\n  .gc-graph-btns { position: absolute; top: 4px; right: 4px; display: flex; gap: 3px; }\n  .gc-graph-btns button { padding: 3px 8px; font-size: 0.75rem; border: 1px solid #c8d0c8; background: rgba(245,247,245,0.92); border-radius: 4px; cursor: pointer; font-weight: 700; color: #374151; }\n  .gc-graph-btns button:hover { background: #166534; color: white; border-color: #166534; }\n  .gc-intersect-list { position: absolute; bottom: 4px; left: 4px; max-height: 70px; overflow-y: auto; font-size: 0.67rem; font-family: 'Courier New', monospace; background: rgba(245,247,245,0.93); border: 1px solid #c8d0c8; border-radius: 4px; padding: 3px 7px; color: #374151; max-width: 54%; line-height: 1.6; display: none; pointer-events: none; }\n\n  \/* \u2500\u2500 Table panel \u2500\u2500 *\/\n  .gc-tbl-setup { background: #e4e8e4; border-bottom: 1px solid #c8d0c8; padding: 5px 8px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; flex-shrink: 0; }\n  .gc-tbl-setup label { font-size: 0.72rem; font-weight: 600; color: #374151; display: flex; align-items: center; gap: 3px; }\n  .gc-tbl-setup input { width: 50px; padding: 3px 4px; border: 1px solid #9ca3af; border-radius: 4px; font-size: 0.78rem; background: white; }\n  .gc-tbl-setup button { padding: 4px 9px; border: none; border-radius: 4px; background: #166534; color: white; font-size: 0.72rem; font-weight: 700; cursor: pointer; }\n  .gc-tbl-out { flex: 1; overflow: auto; }\n  .gc-tbl-out table { border-collapse: collapse; width: 100%; font-size: 0.78rem; }\n  .gc-tbl-out th { background: #166534; color: white; padding: 4px 8px; font-weight: 700; text-align: left; position: sticky; top: 0; }\n  .gc-tbl-out td { border-bottom: 1px solid #d1d5db; padding: 3px 8px; color: #1f2937; font-family: 'Courier New', monospace; }\n  .gc-tbl-out tr:nth-child(even) td { background: #eaf0ea; }\n\n  \/* \u2500\u2500 Keypad \u2500\u2500 *\/\n  .gc-keypad { display: flex; flex-direction: column; gap: 6px; }\n  .gc-key-row { display: flex; gap: 6px; }\n  .gc-key { flex: 1; padding: 11px 3px; border: none; border-radius: 8px; cursor: pointer; font-size: 0.82rem; font-weight: 700; font-family: 'Segoe UI', sans-serif; text-align: center; user-select: none; -webkit-user-select: none; box-shadow: 0 3px 0 rgba(0,0,0,0.45); transition: transform 0.08s, box-shadow 0.08s; }\n  .gc-key:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(0,0,0,0.45); }\n  .gc-key.fn   { background: #1d4ed8; color: #fff; }\n  .gc-key.fn2  { background: #6d28d9; color: #fff; }\n  .gc-key.num  { background: #374151; color: #fff; }\n  .gc-key.op   { background: #4b5563; color: #e5e7eb; }\n  .gc-key.sp   { background: #92400e; color: #fef3c7; }\n  .gc-key.grn  { background: #166534; color: #fff; font-size: 1.15rem; }\n\n  \/* Ad slot *\/\n  .gc-ad { margin-top: 14px; background: rgba(255,255,255,0.04); border: 1px dashed rgba(255,255,255,0.1); border-radius: 10px; min-height: 80px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.18); font-size: 0.72rem; letter-spacing: 0.12em; }\n\n  @media (max-width: 420px) {\n    .gc-device { padding: 10px 10px 16px; }\n    .gc-key { padding: 9px 2px; font-size: 0.75rem; }\n    .gc-key-row { gap: 5px; }\n    .gc-keypad { gap: 5px; }\n    .gc-screen { height: 240px; }\n  }\n<\/style>\n\n<div id=\"gc\">\n  <div class=\"gc-device\">\n\n    <!-- Screen -->\n    <div class=\"gc-screen-bezel\">\n      <div class=\"gc-screen\">\n        <div class=\"gc-stabs\">\n          <button class=\"gc-stab active\" data-mode=\"calc\" type=\"button\">Rekenmachine<\/button>\n          <button class=\"gc-stab\" data-mode=\"fns\" type=\"button\">Y=<\/button>\n          <button class=\"gc-stab\" data-mode=\"graph\" type=\"button\">Grafiek<\/button>\n          <button class=\"gc-stab\" data-mode=\"table\" type=\"button\">Tabel<\/button>\n        <\/div>\n\n        <!-- Calculator -->\n        <div id=\"gc-p-calc\" class=\"gc-panel active\">\n          <div id=\"gc-history\" class=\"gc-history\"><\/div>\n          <div class=\"gc-input-line\">\n            <span class=\"gc-prompt\">\u25b6<\/span>\n            <span id=\"gc-expr\"><\/span>\n            <span class=\"gc-caret\">|<\/span>\n          <\/div>\n        <\/div>\n\n        <!-- Y= function editor -->\n        <div id=\"gc-p-fns\" class=\"gc-panel\">\n          <div class=\"gc-yfn-list\" id=\"gc-yfn-list\"><\/div>\n          <div class=\"gc-yfn-hint\">Selecteer een rij en gebruik het toetsenbord om een functie in te typen.<\/div>\n        <\/div>\n\n        <!-- Graph -->\n        <div id=\"gc-p-graph\" class=\"gc-panel\">\n          <div class=\"gc-graph-wrap\" id=\"gc-graph-wrap\">\n            <canvas id=\"gc-canvas\"><\/canvas>\n            <div class=\"gc-coord-badge\" id=\"gc-coords\">x=0  y=0<\/div>\n            <div class=\"gc-intersect-list\" id=\"gc-intersect-list\"><\/div>\n            <div class=\"gc-graph-btns\">\n              <button type=\"button\" id=\"gc-g-zin\">\uff0b<\/button>\n              <button type=\"button\" id=\"gc-g-zout\">\uff0d<\/button>\n              <button type=\"button\" id=\"gc-g-rst\">\u22a1<\/button>\n            <\/div>\n          <\/div>\n        <\/div>\n\n        <!-- Table -->\n        <div id=\"gc-p-table\" class=\"gc-panel\">\n          <div class=\"gc-tbl-setup\">\n            <label>Van: <input type=\"number\" id=\"gc-t-from\" value=\"-5\"><\/label>\n            <label>Tot: <input type=\"number\" id=\"gc-t-to\" value=\"5\"><\/label>\n            <label>Stap: <input type=\"number\" id=\"gc-t-step\" value=\"1\" step=\"any\"><\/label>\n            <button type=\"button\" id=\"gc-t-gen\">Genereer<\/button>\n          <\/div>\n          <div class=\"gc-tbl-out\" id=\"gc-tbl-out\"><\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <!-- Keypad -->\n    <div class=\"gc-keypad\">\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key fn\" data-act=\"ins\" data-val=\"sin(\" type=\"button\">sin<\/button>\n        <button class=\"gc-key fn\" data-act=\"ins\" data-val=\"cos(\" type=\"button\">cos<\/button>\n        <button class=\"gc-key fn\" data-act=\"ins\" data-val=\"tan(\" type=\"button\">tan<\/button>\n        <button class=\"gc-key fn\" data-act=\"ins\" data-val=\"\u03c0\" type=\"button\">\u03c0<\/button>\n        <button class=\"gc-key fn\" data-act=\"ins\" data-val=\"e\" type=\"button\">e<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key fn2\" data-act=\"sqr\" type=\"button\">x\u00b2<\/button>\n        <button class=\"gc-key fn2\" data-act=\"ins\" data-val=\"\u221a(\" type=\"button\">\u221a<\/button>\n        <button class=\"gc-key fn2\" data-act=\"ins\" data-val=\"ln(\" type=\"button\">ln<\/button>\n        <button class=\"gc-key fn2\" data-act=\"ins\" data-val=\"log(\" type=\"button\">log<\/button>\n        <button class=\"gc-key fn2\" data-act=\"ins\" data-val=\"^\" type=\"button\">^<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\"(\" type=\"button\">(<\/button>\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\")\" type=\"button\">)<\/button>\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\"\/\" type=\"button\">\u00f7<\/button>\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\"*\" type=\"button\">\u00d7<\/button>\n        <button class=\"gc-key sp\" data-act=\"del\" type=\"button\">DEL<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"7\" type=\"button\">7<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"8\" type=\"button\">8<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"9\" type=\"button\">9<\/button>\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\"-\" type=\"button\">\u2212<\/button>\n        <button class=\"gc-key sp\" data-act=\"ac\" type=\"button\">AC<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"4\" type=\"button\">4<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"5\" type=\"button\">5<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"6\" type=\"button\">6<\/button>\n        <button class=\"gc-key op\" data-act=\"ins\" data-val=\"+\" type=\"button\">+<\/button>\n        <button class=\"gc-key sp\" data-act=\"ans\" type=\"button\">ANS<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"1\" type=\"button\">1<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"2\" type=\"button\">2<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"3\" type=\"button\">3<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\"0\" type=\"button\">0<\/button>\n        <button class=\"gc-key num\" data-act=\"ins\" data-val=\".\" type=\"button\">.<\/button>\n      <\/div>\n      <div class=\"gc-key-row\">\n        <button class=\"gc-key op\" data-act=\"neg\" type=\"button\">(-)<\/button>\n        <button class=\"gc-key grn\" data-act=\"calc\" type=\"button\" style=\"flex:4\">=<\/button>\n      <\/div>\n    <\/div>\n\n    <!-- Ad slot -->\n    <div class=\"gc-ad\" id=\"gc-ad\"><!-- ADVERTENTIE --><\/div>\n\n  <\/div>\n<\/div>\n\n\n\n\n<style>\n  .gc-desc { font-family: 'Segoe UI', Tahoma, sans-serif; color: #1e293b; max-width: 800px; margin: 0 auto 2rem; padding: 24px; background: white; border-radius: 16px; border: 1px solid #e2e8f0; box-shadow: 0 10px 30px rgba(0,0,0,0.05); line-height: 1.7; }\n  .gc-desc h2 { font-size: 1.45rem; font-weight: 700; margin: 1.75rem 0 0.75rem; color: #1e293b; }\n  .gc-desc h2:first-child { margin-top: 0; }\n  .gc-desc h3 { font-size: 1.1rem; font-weight: 600; margin: 1.25rem 0 0.5rem; color: #1e293b; }\n  .gc-desc p { margin-bottom: 1rem; color: #475569; }\n  .gc-desc ul { padding-left: 1.5rem; margin-bottom: 1rem; color: #475569; }\n  .gc-desc li { margin-bottom: 0.45rem; }\n  .gc-desc a { color: #3b82f6; text-decoration: none; font-weight: 500; }\n  .gc-desc a:hover { text-decoration: underline; }\n  @media (max-width: 768px) { .gc-desc { padding: 1.25rem; } }\n<\/style>\n\n<div class=\"gc-desc\">\n  <h2>Wat is een grafische rekenmachine?<\/h2>\n  <p>Voor we in de berekeningen duiken, is het goed om de vraag te beantwoorden: wat is een grafische rekenmachine precies? In tegenstelling tot een standaard rekenmachine, heeft een grafische rekenmachine (vaak afgekort als GR) een groot scherm waarop visuele weergaven van wiskundige vergelijkingen getoond kunnen worden.<\/p>\n  <p>Terwijl een gewone calculator stopt bij de uitkomst van een som, gaat een grafische rekenmachine verder door:<\/p>\n  <ul>\n    <li>Functies in een x,y-assenstelsel te tekenen.<\/li>\n    <li>Verbanden tussen verschillende formules visueel te maken.<\/li>\n    <li>Complexe statistische data te verwerken in diagrammen.<\/li>\n  <\/ul>\n  <p>In het Nederlandse onderwijs (met name op de HAVO en het VWO) is de GR een verplicht onderdeel bij vakken als Wiskunde A en B.<\/p>\n\n  <h2>Waarom een online grafische rekenmachine gebruiken?<\/h2>\n  <p>Een fysieke grafische rekenmachine van merken als Texas Instruments of Casio kost al snel meer dan \u20ac100,-. Onze online grafische rekenmachine biedt een fantastisch (en gratis) alternatief voor thuisgebruik of tijdens het studeren.<\/p>\n\n  <h3>De voordelen van onze online tool:<\/h3>\n  <ul>\n    <li><strong>Gebruiksgemak:<\/strong> Voer simpelweg een functie in (zoals y = 2x + 3) en zie de grafiek direct verschijnen.<\/li>\n    <li><strong>Snelheid:<\/strong> Geen traag ladende schermen of ingewikkelde menu-structuren; de online rekenmachine werkt direct in je browser.<\/li>\n    <li><strong>Toegankelijkheid:<\/strong> Of je nu op je laptop, tablet of smartphone werkt, je hebt je wiskundige tools altijd bij de hand.<\/li>\n    <li><strong>Snijpunten en Maxima:<\/strong> Vind eenvoudig waar twee lijnen elkaar kruisen of waar een parabool zijn hoogste of laagste punt bereikt.<\/li>\n  <\/ul>\n  <h2>Functies analyseren en berekenen<\/h2>\n  <p>Met onze grafische rekenmachine kun je meer dan alleen lijntjes tekenen. De tool is ontworpen voor diepgaande wiskundige analyse:<\/p>\n  <ul>\n    <li><strong>Functies plotten:<\/strong> Teken meerdere functies tegelijk om ze met elkaar te vergelijken.<\/li>\n    <li><strong>Tabelweergave:<\/strong> Bekijk de exacte co\u00f6rdinaten van punten op je grafiek in een overzichtelijke tabel.<\/li>\n    <li><strong>Wortels en machten:<\/strong> Visualiseer hoe een exponenti\u00eble groei eruitziet of waar een wortelfunctie begint.<\/li>\n  <\/ul>\n\n  <h2>Tips voor het tekenen van grafieken<\/h2>\n  <p>Om het meeste uit de grafische rekenmachine te halen, zijn hier een paar handige tips:<\/p>\n  <ul>\n    <li><strong>Gebruik haakjes:<\/strong> Vooral bij breuken en complexe machten zorgen haakjes ervoor dat de calculator precies doet wat jij wilt. Typ bijvoorbeeld <code style=\"background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:0.9em;\">sin(2*x)<\/code> in plaats van <code style=\"background:#f1f5f9;padding:1px 5px;border-radius:4px;font-size:0.9em;\">sin 2x<\/code>.<\/li>\n    <li><strong>Zoomfunctie:<\/strong> Gebruik de zoom-opties om details rondom de oorsprong (0,0) te bekijken of juist uit te zoomen voor een overzicht van de hele functie.<\/li>\n    <li><strong>Meerdere kleuren:<\/strong> Geef elke functie een eigen kleur via het Y= tabblad om het overzicht te bewaren in een druk assenstelsel.<\/li>\n    <li><strong>Rekenmachine tab:<\/strong> Gebruik de ingebouwde rekenmachine voor losse berekeningen, zonder van pagina te hoeven wisselen.<\/li>\n  <\/ul>\n\n  <h2>Op zoek naar andere online rekenmachines?<\/h2>\n  <p>Wij hebben nog veel andere gratis tools beschikbaar \u2014 van een <a href=\"https:\/\/online-rekenmachines.nl\/wiskundige-rekenmachines\/wortels-berekenen\/\">wortel rekenmachine<\/a> en een <a href=\"https:\/\/online-rekenmachines.nl\/wiskundige-rekenmachines\/pythagoras-berekenen\/\">Pythagoras calculator<\/a> tot een <a href=\"https:\/\/online-rekenmachines.nl\/wiskundige-rekenmachines\/machten-berekenen\/\">machten rekenmachine<\/a> en meer. Bekijk het volledige aanbod op onze <a href=\"https:\/\/online-rekenmachines.nl\/\">online rekenmachines<\/a> website.<\/p>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Rekenmachine Y= Grafiek Tabel \u25b6 | Selecteer een rij en gebruik het toetsenbord om een functie in te typen. x=0 y=0 \uff0b \uff0d \u22a1 Van: Tot: Stap: Genereer sin cos tan \u03c0 e x\u00b2 \u221a ln log ^ ( ) \u00f7 \u00d7 DEL 7 8 9 \u2212 AC 4 5 6 + ANS 1 2 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-9","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Online Grafische Rekenmachine - Gratis Functies Tekenen<\/title>\n<meta name=\"description\" content=\"Gebruik onze gratis online grafische rekenmachine. 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