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class="breadcrumbs__link">Tutorials</span><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Math agent</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Math agent</h1></header><style>[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: 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<p>Build a <strong>Math Agent</strong> flow for an agentic application using the <strong>Tool-calling agent</strong> component.</p>
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<p>In this flow, the <strong>Tool-calling agent</strong> reasons using an <strong>Open AI</strong> LLM to solve math problems.
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It selects the <strong>Calculator</strong> tool for simpler math and the <strong>Python REPL</strong> tool (with the Python <code>math</code> library) for more complex problems.</p>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2>
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<p>To use this flow, you need an OpenAI API key.</p>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="open-langflow-and-start-a-new-flow">Open Langflow and start a new flow<a href="#open-langflow-and-start-a-new-flow" class="hash-link" aria-label="Direct link to Open Langflow and start a new flow" title="Direct link to Open Langflow and start a new flow"></a></h2>
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<p>Click <strong>New Flow</strong>, and then select the <strong>Math Agent</strong> flow.</p>
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<p>This opens a starter flow with the necessary components to run an agentic application using the Tool-calling agent.</p>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="math-agent-flow">Math Agent flow<a href="#math-agent-flow" class="hash-link" aria-label="Direct link to Math Agent flow" title="Direct link to Math Agent flow"></a></h2>
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<p><img decoding="async" loading="lazy" src="/assets/images/starter-flow-simple-agent-repl-6c6df85ce6d01bfafebe3e4247cefc83.png" width="2104" height="1746" class="img_ev3q"></p>
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<p>The <strong>Math Agent</strong> flow consists of these components:</p>
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<ul>
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<li>The <strong>Tool calling agent</strong> component uses the connected LLM to reason through the user's input and select among the connected tools to complete its task.</li>
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<li>The <strong>Python REPL tool</strong> component executes Python code in a REPL (Read-Evaluate-Print Loop) interpreter.</li>
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<li>The <strong>Calculator</strong> component performs basic arithmetic operations.</li>
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<li>The <strong>Chat Input</strong> component accepts user input to the chat.</li>
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<li>The <strong>Prompt</strong> component combines the user input with a user-defined prompt.</li>
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<li>The <strong>Chat Output</strong> component prints the flow's output to the chat.</li>
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<li>The <strong>OpenAI</strong> model component sends the user input and prompt to the OpenAI API and receives a response.</li>
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</ul>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="run-the-math-agent-flow">Run the Math Agent flow<a href="#run-the-math-agent-flow" class="hash-link" aria-label="Direct link to Run the Math Agent flow" title="Direct link to Run the Math Agent flow"></a></h2>
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<ol>
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<li>Add your credentials to the Open AI component.</li>
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<li>Click <strong>Playground</strong> to start a chat session.</li>
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<li>Enter a simple math problem, like <code>2 + 2</code>, and then make sure the bot responds with the correct answer.</li>
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<li>To confirm the REPL interpreter is working, prompt the <code>math</code> library directly with <code>math.sqrt(4)</code> and see if the bot responds with <code>4</code>.</li>
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<li>The agent will also reason through more complex word problems. For example, prompt the agent with the following math problem:</li>
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</ol>
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<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>The equation 24x2+25x−47ax−2=−8x−3−53ax−2 is true for all values of x≠2a, where a is a constant.</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>What is the value of a?</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>A) -16</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>B) -3</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>C) 3</span></div></div><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>D) 16</span></div></div><br></code></div></div>
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<p>The agent should respond with <code>B</code>.</p>
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<p>Now that your query has completed the journey from <strong>Chat input</strong> to <strong>Chat output</strong>, you have completed the <strong>Math Agent</strong> flow.</p></div></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/tutorials-memory-chatbot"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Memory chatbot</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/tutorials-sequential-agent"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Sequential tasks agent</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#prerequisites" class="table-of-contents__link toc-highlight">Prerequisites</a></li><li><a href="#open-langflow-and-start-a-new-flow" class="table-of-contents__link toc-highlight">Open Langflow and start a new flow</a></li><li><a href="#math-agent-flow" class="table-of-contents__link toc-highlight">Math Agent flow</a></li><li><a href="#run-the-math-agent-flow" class="table-of-contents__link toc-highlight">Run the Math Agent flow</a></li></ul></div></div></div></div></main></div></div></div><div style="position:fixed;right:20px;bottom:20px;z-index:100;display:flex;align-items:center;gap:10px;cursor:pointer"><div style="background-color:#f6f6f6;border-radius:50%;width:48px;height:48px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 4px rgba(0,0,0,0.1)"><img src="/img/langflow-icon-black-transparent.svg" style="width:40px" alt="Search"></div></div></div>
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