ChatGPT is honestly a mess for multivariable stuff, it hallucinates steps constantly. I had issues with Photomath too since its geared towards basic algebra. For real calculus, most of these ai bots just arent as good as expected.

• WolframAlpha Pro Premium Subscription is the only thing that actually gets the steps right.
• Symbolab Step-by-Step Calculator works if youre on a tighter budget but its not as powerful.

Ive spent years testing these engines and Microsoft Math Solver App Free Version is surprisingly robust for multivariable stuff. Back when I was crunching nasty triple integrals at 2am, I found it handled symbolic logic way better than generic LLMs. Plus its free, which is huge when youre living on ramen like I was. Worth a shot before you drop any cash on a subscription.

@Reply #2 - good point! Honestly tho, I had such a scare last semester with a flux integral that ChatGPT just totally made up. It was terrifying! I realized then that generic AI is kinda dangerous for math because it just predicts text. I started using Maple Calculator App Free and it was amazing for visualizing 3D surfaces! For the super complex multivariable homework, I actually swear by Maplesoft Maple 2024 Student Version. It uses a real symbolic math engine so it doesnt hallucinate steps like Photomath does sometimes... its so much more reliable. Love it so much! It totally saved my GPA when I was pulling all-nighters. Just be careful with the basic bots because they wont tell you when they are wrong, they just sound confident while failing you lol.