App Overview

TI Nspire Calculator Manual icon

TI Nspire Calculator Manual

Di Venisco UG (haftungsbeschrankt) · Education

How this app makes math so much easier:

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.8
34 ratings · Below Average

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for TI Nspire Calculator Manual: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Include more detailed guides and video tutorials.

Assumption to check: Limited content depth and examples.

Validate with people who use this workflow before building.

Hypothesis 2

Implement a more intuitive and visually appealing design.

Assumption to check: User interface is not modern.

Validate with people who use this workflow before building.

Hypothesis 3

Gather user feedback to continuously improve the app.

Assumption to check: 2.8 rating suggests user dissatisfaction.

Validate with people who use this workflow before building.

Hypothesis 4

Add interactive quizzes and practice problems to enhance learning.

Assumption to check: Lack of interactive elements.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

How this app makes math so much easier: • This manual shows all important functions of the new graphing calculator TI-Nspire CX (and CAS), which are very useful for high school and college. Actual calculator not included! • The app shows the exact key press sequence for 28 topics of Differential Calculus, Solve Equations, Integral Calculus, Matrices and CAS Functions! • You can swipe through screenshots of the original graphing calculator which show every step you have to do (220 screenshots in total)! • Or you can watch short video tutorials to see what you have to do. • Additionally there are helpful descriptions in the app which give some hints and further knowledge. • More than 50 math problems with solutions to practice your skills! Not yet convinced? Here's how you would benefit from this app: • Every topic shows a detailed instruction through screenshots of the original graphing calculator TI-Nspire CX which show how to solve the math problem. You only have to swipe to get the next screenshot which looks similar with your calculator display! • To ”become warm” you have the possibility to insert a sample function in your calculator which is used in the app. The app shows an example for every topic. After that, press the first key of the respective key press sequence on the graphing calculator. Then swipe once again to get the next screenshot. It will look like the display of your calculator. The app contains for each step a picture, so it's easier to solve your math problems and become a TI-Nspire CX professional. • The app is also useful for preparing your examination, because you often don't remember all instructions of the calculator. • Your teacher will be grateful as well, because he doesn't have to walk around the classroom until everyone's calculator shows the right solution. You only have to take a look at the app and know how to do! • The app contains the following topics: BASICS • Enter Function • Trace DIFFERENTIAL CALCULUS • Zeros of a Function • Calculate Tangent • Intersection of two Functions • Maxima • Minima • Draw Derivation • Inflection Points • Find X or Y values • Regression SOLVE EQUATIONS • Polynomial • System of Linear Equations INTEGRAL CALCULUS • Integral in Calculator-Menu • Integral in Graph-Menu • Find Area with Absolute Value • Area between two Functions MATRICES • Save Matrix • Put into Row Echelon Form • Solve Matrix • Transpose of a Matrix • Identity Matrix • Inversion of a Matrix CAS FUNCTIONS • Derivative • Integration • Expand an Expression • Solve Equations exactly • Find Tangent Line MATH PROBLEMS • Practice with over 50 math problems and solutions • You can practice math problems of a single topic (e.g. Zeros of a Function) or random math problems of Differential Calculus for example. • As an alternative the app shows you mixed math problems of all topics. We also have apps for the calculators: TI-Nspire CX (and CAS), TI-84 Plus, TI-84 Plus CE, CASIO fx-9860GlI. CALCULATOR NOT INCLUDED. THE APP IS A MANUAL.

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
react-navigation
react-native-paper
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.