CATIGA CS-121 Graphing Scientific Calculator — Compact, 360+ Functions, Protective Case

CATIGA CS-121 is a compact scientific calculator with built-in graphing capabilities that lets students plot, analyze, and solve advanced math problems in one affordable device.

The CATIGA CS-121 combines a familiar scientific keypad with true graphing functionality so you can view equations and their graphs simultaneously. Designed for algebra, trigonometry, calculus, and statistics, this calculator adds plotting, regression, and equation-solving tools without the bulk or price of premium graphing models. Its lightweight build and protective case make it easy to carry between classes, study sessions, and exams.

How does the CS-121 handle both calculations and graphing?

The CS-121 displays formulas and graphs on the same screen so you can verify results quickly. It supports multiple graph types, tracing, zoom, and basic analysis features to inspect intersections and function behavior.

• Simultaneous formula-and-graph display for faster error checking
• Plot common functions including polynomials, trig, and exponentials
• Trace, zoom, and cursor tools for examining specific points
• Equation solving linked to plotted curves for visual verification

What math capabilities are included for classroom courses?

The unit contains more than 360 built-in functions across three smart modes so it adapts to different subjects. It covers fractions, complex numbers, statistics, regression, standard deviation, and symbolic-style solving useful from pre-algebra up through calculus.

• 360+ functions including statistical and regression tools
• Angle, calculation, and display modes for flexibility in problems
• Complex-number arithmetic and fraction handling for advanced work
• Variable solving and graph-linked equation analysis for practice

Is the CS-121 portable and durable enough for daily student use?

The CS-121 was built with on-the-go studying in mind: a compact 7 × 3.3-inch footprint and just 6.4 ounces make it easy to slip into a backpack or pencil case. Anti-drop housing and an included protective case help prevent damage from everyday knocks.

• Compact dimensions that fit hand, desk, or backpack
• Lightweight 6.4 oz design for comfortable all-day use
• Anti-drop housing plus protective case included to protect screen and keys
• Simple reset button on the back for quick troubleshooting

What support and warranty come with the calculator?

CATIGA backs the CS-121 with a 365-day limited warranty and responsive customer support. If you experience power issues, a quick reset often restores normal function; otherwise support typically replies within 24 hours.

• 365-day limited warranty for peace of mind
• Responsive support team with fast reply times
• Reset button on the back for simple troubleshooting
• Value-oriented graphing capability at a lower price point

Who is this for: The CATIGA CS-121 suits high school and college students who need more than a basic scientific calculator but want an affordable, portable graphing option. It’s a solid choice for learners in algebra, precalculus, calculus, trigonometry, statistics, and related lab or coursework that benefit from visualizing functions and checking work on a single device.