Sequences and Series Program for Algebra 2 & Precalculus

📄 LICENSE NOTICE: This purchase grants you a non-transferable license for personal use. This is a digital download.

⚠️ COMPATIBILITY: Works ONLY on TI-84 Plus CE (color screen) or TI-84 Plus CE Python.

❗ REFUNDS: All sales are final. No refunds on digital licenses.

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Stop Memorizing Sequences and Series Formulas

This TI-84 Plus CE program solves arithmetic sequences, geometric sequences, arithmetic series, geometric series, infinite geometric series, and recursive sequences—including Fibonacci types—instantly and accurately.

The Sequences & Series Problem:

Most Algebra 2 and Precalculus students struggle with sequences and series because they:

• Can't keep all the formulas straight (An vs Sn vs Gn)
• Make arithmetic mistakes with long calculations
• Forget which formula variation to use
• Struggle with recursive sequences that require iteration
• Waste time on homework that should be straightforward

This program eliminates all of those problems.

🎯 What This Program Does:

Arithmetic Sequences

✅ Find any term (An) given A1, d, and n
✅ Find first term (A1) from other values
✅ Calculate common difference (d)
✅ Solve for term number (n)

Geometric Sequences

✅ Find any term (Gn) given G1, r, and n
✅ Find first term (G1) from other values
✅ Calculate common ratio (r)
✅ Solve for term number (n) using logarithms

Arithmetic Series

✅ Sum using Sn = n/2(A1+An)
✅ Sum using Sn = n/2(2A1+(n-1)d)
✅ Solve for any variable in the formulas
✅ Find number of terms from sum

Geometric Series

✅ Calculate finite geometric sums
✅ Solve for G1, r, or n from sum
✅ Handle both |r| < 1 and |r| > 1 cases

Infinite Geometric Series

✅ Automatic convergence testing (|r| < 1)
✅ Calculate sum to infinity
✅ Solve for G1 or r from infinite sum
✅ Error messages for divergent series

Recursive Sequences

✅ Linear recursion: An = C·A(n-1) + d
✅ Fibonacci-type: An = A(n-1) + A(n-2)
✅ Built-in help with 8 common recursive types
✅ Examples for geometric, arithmetic, quadratic, alternating, and compound recursion

Perfect For:

• Algebra 2 students learning sequences and series
• Precalculus students needing recursive sequence help
• AP Precalculus students (recursion is heavily tested)
• SAT/ACT prep (sequences appear regularly)
• Anyone who wants to check homework answers quickly

What You Get:

📱 SEQNSER Program (9KB) - Complete sequences and series solver
📖 Installation Guide - Simple setup with screenshots
🎯 Built-In Help Menu - Formulas and examples right on your calculator
💬 Email Support - Help with installation and usage

Technical Requirements:

• TI-84 Plus CE or TI-84 Plus CE Python calculator
• 9KB available memory (very small program!)
• TI Connect CE software (free download from TI)

Installation Made Simple:

1. Download program file to your computer
2. Connect calculator via USB cable
3. Drag file to calculator using TI Connect CE
4. Run SEQNSER from your Programs menu

Need help getting started? Check out our Complete Installation Guide or Troubleshooting Tips.

📢 This Program Was Created By Customer Request

A student asked if I could make a sequences and series program for Algebra 2 and Precalculus. I built it, tested it, and now you can use it too. Have ideas for programs or improvements? Email me at martin@mcstutoring.com — I listen to customer feedback and build what students actually need.

📘 Already Taking AP Calculus BC?

If you're in AP Calculus BC and need help with convergence tests and Taylor series, check out the more advanced SERIES Pro program with the GPART Method for systematic convergence testing.

Ready to stop wasting time on sequences and series? Get this program now and finish your homework faster.