James Carter

Hi, I’m James Carter. I am a data scientist and technology researcher with a Ph.D. from the National University of Singapore (NUS). Currently, I work with Perplexity AI, where I focus on the frontiers of artificial intelligence and information retrieval. I built SmartToolPro with a simple conviction: Accuracy shouldn't be complicated. I apply the same rigorous standards from my academic and professional research to these everyday tools. Whether you are planning a mortgage or tracking health metrics, my goal is to provide you with calculators that are transparent, privacy-focused, and mathematically verified.

How to Put Fractions in a Calculator: Easy Steps for iPhone & Android (2025)

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How to Put Fractions in a Calculator

Why You Need to Know How to Put Fractions in a Calculator Fractions are essential in everyday life—whether you’re calculating ingredients for a recipe or solving math homework. But if you don’t know how to enter them into your calculator properly, you might find yourself stuck. In this guide, we’ll walk you through how to … Read more

How to Use a Graphing Calculator

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How to Use a Graphing Calculator

How to Use a Graphing Calculator  You didn’t buy a fancy brick—you bought a tool. This guide shows you how to use a graphing calculator to plot functions, set the window, analyze intersections, and run basic statistics. You’ll first learn the universal steps, then see quick brand-specific notes for TI-84, Casio fx-9860GIII, and HP Prime … Read more