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Theory icon - also known as education, idea, knowledge, pencil, mathematics, Theory, formula, and square root. Created in a clean glyph style, perfect for web, apps, and UI projects. Available in SVG and PNG, with multiple style variants.
<svg
xmlns="http://www.w3.org/2000/svg"
width="640"
height="640"
viewBox="-3 0 480 480"
>
<path
d="M121.14 151.984a8 8 0 1 1-16 0 8 8 0 0 1 16 0zM79.254 424l80-40h57.887v-8c0-36.238-18.778-68.96-50.282-88H81.141v-16h80v-32.016h-96v43.735l-3.993 2.312C29.066 304.61 9.141 339.09 9.141 376c0 57.344 46.656 104 104 104 19.91 0 39.015-5.586 55.48-16h-9.367zm-17.027 2.91-11.313 11.313c-34.309-34.313-34.309-90.145 0-124.453l11.313 11.308c-28.07 28.09-28.07 73.754 0 101.832zm0 0"
/>
<path
d="M169.14 432h240v16h-240zM465.14 400h-40v48h40c4.407 0 8-3.586 8-8v-32c0-4.414-3.593-8-8-8zM169.14 400h240v16h-240zM153.14 404.945 115.028 424l38.114 19.055zM307.14 48l-51.968 178.176L238.086 192h-46.649c6.262-12.191 9.704-25.84 9.704-40.016 0-48.52-39.48-88-88-88s-88 39.48-88 88c0 28.801 14.054 55.496 37.574 72h42.426v-49.472c-9.29-3.313-16-12.114-16-22.528 0-13.23 10.765-24 24-24 13.23 0 24 10.77 24 24 0 10.414-6.711 19.215-16 22.528v49.472h42.414c6.53-4.586 12.242-10.007 17.218-15.984h47.422l30.914 61.832L319.141 64h154V48zm0 0"
/>
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d="m358.797 165.656 34.344-34.344 34.343 34.344 11.313-11.312L404.453 120l34.344-34.344-11.313-11.312-34.343 34.344-34.344-34.344-11.313 11.312L381.828 120l-34.344 34.344zM313.14 184h160v16h-160zM313.14 216h160v16h-160zM313.14 248h160v16h-160zM105.14 0h16v32h-16zM0 50.176l11.313-11.313 22.628 22.63L22.63 72.804zM192.332 61.488l22.629-22.625 11.312 11.313L203.648 72.8zm0 0"
/>
</svg>
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