Formula Box (LaTeX) vs BenchPro Testing

Leave one variable blank, and FormulaBox solves for it. Type any formula, fill in the numbers you know, and the blank one is worked out: the exact answer where there is one, and its decimal value. • Any formula, typed or pasted: use the math keyboard, or paste LaTeX. No LaTeX needed. • A library ready to use: mathematics, statistics, physics, finance, chemistry, construction, queueing theory, atomic and nuclear physics. Pick a formula and compute. • Constants already in: the speed of light and others are filled in, so you enter only the rest. • Simplify in one step: fractions, roots and powers made simple. • Your own formula box: save the formulas you use, with tags and notes, and share them as a link, LaTeX or a picture. • Two pages on big screens: on iPad and iPhone Duo, the formula on one page, the answer on the other. • Choose how many decimal places in Settings. The app shows ads.

BenchPro Tester is the companion app used alongside Bench Pro repair shop diagnostic stations. When you bring your phone in for service or a trade-in evaluation, your technician connects it over USB and this app walks through a complete guided hardware check — results are sent straight to the shop's diagnostic report. WHAT IT CHECKS • Screen — dead pixel and display check • Touch screen — full coverage test • Multi-touch — simultaneous finger detection • Front and rear camera • Speaker and earpiece • Top and bottom microphone • Vibration / haptics • Physical buttons • Charging port • Flashlight • Proximity sensor • Wi-Fi and Bluetooth radios • GPS • Gyroscope • Battery health (real load test, not just a snapshot reading) HOW IT WORKS Plug your phone into the shop's diagnostic computer with a USB cable. This app opens automatically and walks you through each test with clear on-screen instructions — tap Pass, Fail, or Skip as you go. No account, no sign-up, no data entry required. No cable handy, or a port that won't connect? The app also supports a hand-tested mode your technician can use directly on the shop computer, so a diagnostic can still be completed without a working USB connection. WHO IT'S FOR This app is intended for use at a participating repair shop running Bench Pro Tech Station — it isn't a general consumer diagnostic tool and has no functionality on its own outside of that pairing. PRIVACY Test results are sent only to the shop's own computer over your temporary USB/local connection — nothing is uploaded to Bench Pro's servers or any third party, and no account or personal information is required to use the app.