{"$schema":"https://toolsly.tools/schemas/tool-manifest-v1.json","generated":"2026-06-13T19:02:26.295Z","discovery":{"catalog":"https://toolsly.tools/tools.json","llmsTxt":"https://toolsly.tools/llms.txt","sitemap":"https://toolsly.tools/sitemap.xml"},"relatedTools":[{"slug":"time-zone-meeting-planner","name":"Time Zone Meeting Planner","url":"https://toolsly.tools/time-zone-meeting-planner"},{"slug":"age-calculator","name":"Age Calculator","url":"https://toolsly.tools/age-calculator"},{"slug":"temperature-converter","name":"Temperature Converter","url":"https://toolsly.tools/temperature-converter"},{"slug":"random-picker","name":"Random Picker","url":"https://toolsly.tools/random-picker"},{"slug":"stopwatch","name":"Stopwatch (Duration Calculator)","url":"https://toolsly.tools/stopwatch"},{"slug":"compound-interest-calculator","name":"Compound Interest Calculator","url":"https://toolsly.tools/compound-interest-calculator"},{"slug":"electricity-cost-calculator","name":"Electricity Cost Calculator","url":"https://toolsly.tools/electricity-cost-calculator"},{"slug":"gpa-calculator","name":"GPA Calculator","url":"https://toolsly.tools/gpa-calculator"}],"kind":"utility","slug":"scientific-calculator","name":"Scientific Calculator","description":"Evaluate math expressions with trig, logs, roots and constants — degrees or radians, all in your browser.","longDescription":"Type a math expression and get the result. Supports + - * / ^ % with full operator precedence, parentheses, unary minus, the constants pi and e, and functions: sin, cos, tan, asin, acos, atan, sqrt, cbrt, ln, log, log2, abs, exp, floor, ceil, round and factorial. Choose degrees or radians for trigonometry, or write a `deg` suffix inline (e.g. sin(45 deg)). The expression is parsed with a safe tokenizer and shunting-yard evaluator — no eval, nothing leaves your browser.","category":"calc","categoryName":"Calculators","keywords":["scientific calculator","online scientific calculator","math expression evaluator","expression calculator","calculator online","trigonometry calculator","sin cos tan calculator","square root calculator","logarithm calculator","factorial calculator","degrees radians calculator","equation calculator","free scientific calculator","calculator with parentheses","evaluate math expression"],"badge":"Calculator","url":"https://toolsly.tools/scientific-calculator","inputs":[{"type":"text","key":"expression","label":"Expression","monospace":true,"placeholder":"sin(45 deg) + sqrt(2) * 3","help":"Functions: sin cos tan asin acos atan sqrt cbrt ln log log2 abs exp floor ceil round factorial. Constants: pi, e."},{"type":"select","key":"angleMode","label":"Angle mode","defaultValue":"degrees","choices":[{"value":"degrees","label":"Degrees"},{"value":"radians","label":"Radians"}],"help":"Applies to trig functions. A `deg` suffix always means degrees regardless of this setting."}],"outputs":[{"key":"result","label":"Result"},{"key":"expression","label":"Expression"}],"invocation":{"webUi":"https://toolsly.tools/scientific-calculator","api":null,"notes":"Currently invoked via the web UI at `webUi`. Inputs are form fields; outputs are structured text values. A remote MCP/REST API is planned."}}