function
14 stories filed under function on Beyond Market Intelligence. The newest of them: “Discover how an app turns iPhone Duo into a modern cassette player experience”, “Visualize Neural Network Learning: An Interactive Exploration”, and “Stop Wasting Time on Spreadsheets That Can't Spot Unique Data”. Fold it shut like a Walkman. A single hidden layer in a neural network doesn't just memorize points; it draws straight lines. Acme AI is the next-generation, AI-powered spreadsheet platform built to replace Excel and redefine how analysts, data scientists, and enterprise teams work… The list below is every function story on Beyond Market Intelligence, newest first.
Discover how an app turns iPhone Duo into a modern cassette player experience
Fold it shut like a Walkman. A new app treats the iPhone Duo's hinge as a deliberate, tactile ritual: open the device to pick a cassette tape, close it to listen. That's not just nostalgia, it's a thoughtful use of physical form, turning a folding screen into an intentional music experience. If you're wondering what this means for developers, our piece on preparing iOS apps for the Duo's flexible displays offers useful insight.
Visualize Neural Network Learning: An Interactive Exploration
A single hidden layer in a neural network doesn't just memorize points; it draws straight lines. With ReLU activations, one layer of width three can carve the input space into up to four linear segments. Stack another layer, and those segments multiply, so "3 3" can theoretically hit 16. The catch is that training rarely pushes the network to that theoretical max. It's a tidy, visual way to see why depth matters.
Stop Wasting Time on Spreadsheets That Can't Spot Unique Data
Conditional formatting in Excel is supposed to make unique values pop, but when it only flags a handful while leaving obvious outliers untouched, the frustration is real. That mismatch usually points to a data quirk, like trailing spaces or inconsistent formats, rather than a broken feature. It is a common hurdle, but not one you have to wrestle with alone.
Build Your Own ChatGPT Function Inside Excel with an API Key
You're right that Google Sheets has its `=AI` function and Microsoft offers `=Copilot`, but OpenAI hasn't shipped a native `=CHATGPT()` formula for Excel. That doesn't mean you're stuck. With a little VBA and an API key, you can build your own cell-based function that calls ChatGPT directly, then drag it down like any other formula. It's a practical, hands-on way to bring AI into your workflow.
Automate Next Monday's Date Without Complex Formulas
You want the cell to always show next Monday's date, no matter when you open the file. That's a smart ask, and you're right that `=TODAY()+5` only works one day a week. The fix is a formula that calculates the difference to the upcoming Monday dynamically. For instance, `=TODAY()+ (7-WEEKDAY(TODAY(),2))` gets you there, though you'll need a small tweak if today is Monday. It's a common hurdle, and you're not alone in tackling it.
Microsoft retires COPILOT function while keeping its Copilot feature alive
Microsoft's decision to retire the COPILOT worksheet function on 14 September is striking, precisely because the company rarely abandons backward compatibility. The Copilot feature itself remains, so this isn't a retreat from AI assistance. It's a targeted removal of a function that likely saw limited, awkward adoption. Have you used it? If so, for what? I'm curious whether anyone genuinely relied on it, or if it was always a novelty.
Unexpected #SPILL! Errors with SEQUENCE and RANDBETWEEN: A Curious Case
There's a quiet elegance to a formula that fails half the time, it's not broken, yet it refuses to cooperate. When =SEQUENCE(RANDBETWEEN(1,10)) lands in an empty sheet, the #SPILL! error appears roughly half the time, and that's no coincidence. Each random number between 1 and 10 can trigger it, depending on the moment. The fix isn't about forcing a range; it's about understanding how Excel recalculates volatility. We'd suggest testing with a helper cell, as the user did, to see the pattern clearly.
When Your Spreadsheet Refuses to Read a Simple Cell Reference
There's a frustrating disconnect when a formula works in one spreadsheet but fails in another. If referencing `=A2` in your main document returns nothing, the issue often lies in the document's calculation settings or cell formatting, not the formula itself. Check if automatic calculation is turned off, or if the cells are stored as text. This is a common hurdle, but exploring your document's settings usually reveals the fix. For more on troubleshooting AI-driven tool quirks, our piece on verifying code intent offers useful parallels.
Reconciling messy names from different data sources? Let AI simplify it.
Reconciling two name columns when neither dataset plays by the same rules is a familiar frustration. You've got "First Last" on one side, "Last, First" on the other, and that's before the misspellings and partial labels like "M&S" versus "Projected M&S." A simple XLOOKUP or INDEX/MATCH key won't cut it when the data itself is inconsistent. Instead, think about building a fuzzy match approach. Use functions like TRIM, SUBSTITUTE, and maybe even a helper column that strips common prefixes or punctuation.
Fill your data down without reaching for the mouse
The green fill handle is a small target for keyboard-only users. Double-clicking it to auto-fill down a column is efficient, but relying on a mouse can stall your flow. The good news is that you can replicate this action without touching the pointer. Select the cell with the formula, then press **Ctrl+D** to fill down. For a more dynamic approach, try **Ctrl+Shift+End** to select the range, then **Ctrl+D**. It's a simple shift in habit that keeps your hands on the keys.
Explore a Concrete 3D Path Through the Jacobian Conjecture
The Jacobian Conjecture sounds abstract, but this piece grounds it in something we can actually see. The author takes a dense mathematical statement and reframes it through a concrete 3D function, using geometry and algebra to make the counterexample click. It's a smart, approachable way to engage with a complex idea. If you enjoy this kind of clarity, you might also appreciate our look at the Forrester function as a machine learning tool. Both offer fresh angles on mathematical thinking.
Your AWS Lambda Code Storage Just Got a 300 GB Upgrade
AWS Lambda now lets you point deployment packages at your own S3 buckets, lifting the per-Region code storage quota from 75 GB to 300 GB by default. That's a practical unlock for teams juggling large or numerous functions. The catch: per-function package limits stay put, and you'll still call UpdateFunctionCode after swapping an object. It's a focused improvement, not a rewrite, and that's fine. For broader infrastructure thinking, our guide to distributed training algorithms pairs well with this shift.
Build portable serverless logic without sacrificing native cloud power
Vendor lock-in feels like a price you pay for using the cloud, but Elena van Engelen thinks you can have it both ways. In her presentation, she lays out how Clean Architecture, Spring Cloud Function, and Gradle modules keep business logic portable across AWS and Azure. The payoff is a live demo deploying Kotlin services with Terraform CDK. It's a practical path to flexibility. For more on reducing cloud constraints, check out our piece on stateless deployments with the Model Context Protocol.
Explore how AI weaves your health data into smarter personal insights
OpenAI has made ChatGPT Health available to all US users, opening the door to a more personalized data experience. The integration with Apple Health, Function, and MyFitnessPal means your daily metrics can now inform your AI conversations directly. That is a meaningful step toward practical, human-centered data management. If you are exploring how AI handles real-world inputs, our related piece on real-world computer vision deployments offers a useful technical counterpoint.