Overskuelig og meget nem at slå op i. 33 opslagssider.
Formelsamling, regneregler, matematik, matematisk, formler, formelsamlingen, gymnasiet, HF, HTX.
Dette er en alfa-version, hvor du kan finde formler på C-niveau. Vi arbejder hårdt på, at udvide med B- og A-niveau, som kommer til nytår.
Send os gerne din feedback, ønsker eller kommentarer til indhold og udseende, så vi kan gøre det endnu bedre. Glæd dig!
Belysning står for ca. 20 % af vores elforbrug i hjemmet. Hvis du erstatter dine glødepærer med nye energivenlige pærer, sparer du meget. F.eks. kan du spare 900 kr. i pærens levetid ved at bruge en 60-watts halogenpære frem for en glødepære.
Lysguiden har 4 indgange:
1. Find pæren
Klik på den pære, du skal skifte. Så får du en række forslag til, hvad du kan vælge i stedet.
2. Indret med lys
Her kan du se, hvilke pærer der egner sig bedst i de forskellige rum i din bolig.
3. Fra watt til lumen
Se, hvor meget watt svarer til i lumen.
Få svar på de mest almindelige spørgsmål, du kan have til lys og pærer.
Furthermore, Graphing Calculator by Mathlab displays calculations as it performs them on the high-quality display of the Android device, making it easier for the user to understand the calculations and see them clearly. This app has two great strengths. First, it acts as a fine scientific calculator, but, more than that, it displays the intermediate steps of the calculations as you type. It allows the students to both watch and learn how the calculations are made and how to find the final answer. Second, the graphing ability is absolutely stunning! Not only does the calculator beautifully display the graphs, but it automatically generates the x- and y- values and displays them as well.
Free version requires internet connection and contains ads! Upgrade to PRO!
Help site with instructions and examples: http://help.mathlab.us
If you have a question, send email to firstname.lastname@example.org
* arithmetic expressions +,-,*,/,÷
* square root, cube and higher roots (hold root key)
* exponent, logarithms (ln, log)
* trigonometric functions sin p/2, cos 30°, ...
* hyperbolic functions sinh, cosh, tanh, ... (hold "e" key to switch)
* inverse functions (hold direct function key)
* complex numbers, all functions support complex arguments
* derivatives sin x' = cos x, ... (hold x^n key)
* scientific notation (enable in menu)
* percent mode
* save/load history
* multiple functions graphing
* implicit functions up to 2nd degree (ellipse 2x^2+3y^2=1, etc.)
* polar graphs (r=cos2?)
* parametric functions, enter each on new line (x=cos t, y=sin t)
* function roots and critical points on a graph, tap legend to turn on and off (top left corner), use menu to display as a list
* graph intersections (x^2=x+1)
* tracing function values and slopes
* scrollable and resizable graphs
* pinch to zoom
* fullscreen graphs in landscape orientation
* function tables
* save graphs as images
* save tables as csv
* simple and complex fractions 1/2 + 1/3 = 5/6
* mixed numbers, use space to enter values 3 1/2
* linear equations x+1=2 -> x=1
* quadratic equations x^2-1=0 -> x=-1,1
* approximate roots of higher polynomials
* systems of linear equations, write one equation per line, x1+x2=1, x1-x2=2
* polynomial long division
* polynomial expansion, factoring
* matrix and vector operations
* dot product (hold *), cross product
* determinant, inverse, norm, transpose, trace
* user defined constants and functions (PRO)
* save/load expressions
Create geometric constructions and move, scale or rotate them with one or more fingers.
With the Freehandmode you can additional build your lines, circles, squares, rectangles and many more by drawing them on the screen. The system will detect it and create the object for you! For example, you can draw a freehand circle through three given points to create their circum circle.
Furthermore, you can create even complicated mathematical projects by using one of 70 tools to add different points, circles, lines (Perpendicular bisectors, Orthogonal lines, Tangents, etc.), conics, angles, functions and many more.
Define functions and parameter curves to display, integrate or derive them. Create analytical objects like tangents and circles of curvatures or combine your creation with sliders, text and check boxes. Even exact calculations are possible with the own FreeGeo Computer-Algebra-System, for example solving equations.
FreeGeo can be used in other sciences, too. You can do statistical calculations by using one of the regression methods to interpolate given data points. And it is a nice app for learning for school!
A PDF manual of FreeGeo can be found here: http://www.freegeo.de/
**NOTE: This is a lite version where in only few topics are available. All the remaining locked topics will be unlocked on buying the full version from within this lite version. It will be a one time purchase to unlock ALL the locked items in one go.
Full version has 730 questions across 73 subtopics.
• HIGHEST QUALITY and QUANTITY
730 questions and 73 revision notes in all just for Algebra!. High quality content written by an experienced mathematician.
• REVISE BY TOPIC
Expressions, equations, inequalities, advanced expression equations, patterns and sequences, graphs.
• MOCK TEST
Mixed questions from all topics.
• REVIEW with EXPLANATION
Review each question at the end of the test. Know the right answer with detailed explanation for each question.
• PROGRESS METER
With our unique progress tracking feature including pie charts and bar graphs showing your progress, you know you are ready to take on the real test at the board when your progress meter says 100%.
More details on topics:
1. Expressions, equations etc:
The language of algebra
Simplifying expressions (1)
Simplifying expressions (2)
Solving equations with brackets
Equations with the variable on both sides (1)
Formulae, expressions and equations
Expansion, simplification and factorization (1)
Rearranging formulas (1)
Solving linear equations
Equations with the variable on both sides (2)
Setting up equations
Trial and Improvement
Expansion, simplification and factorisation (2)
Rearranging formulas (2)
Difference of two squares
Solving quadratic equations by factorisation (1)
Factorising a quadratic with a unit coefficient of x²
Solving quadratics of the form ax² + bx + c = 0
Solving quadratic equations by factorisation (2)
Solving the general quadratic by the quadratic formula
Using the quadratic formula without a calculator
Solving problems with quadratic equations
Solving a quadratic equation by completing the square
Quadratic equations with no solution
2. Inequalities (F & H)
Inequalities on number lines
More than one inequality
3. Patterns and sequences (F)
Patterns in number
The nth term of a sequence
Finding the nth term
Finding the nth term from given patterns
4. Advanced expressions equations (H)
Uses of graphs-solving linear simultaneous equations
Setting up simultaneous equations
Solving equations with algebraic fractions
Linear and non-linear simultaneous equations
5. Graphs (F)
Drawing graphs from tables
Line lengths and mid-points
Cover-up method for drawing graphs
Drawing quadratic graphs
Reading Values from quadratic graphs
Using graphs to solve quadratic equations
6. Graphs (H)
Parallel and perpendicular lines
Drawing a line with a given gradient
Finding the equation of a line from its graph
Uses of graphs- finding formulae or rules
Significant points of a quadratic graph
Graphs of loci and trig functions
Solving equations by the method of intersection
Sine and cosine graphs
Transformations of the graph y = f(x)
Keywords :- AQA, Algebra, Bank, CCEA, Edexcel, GCSE, Maths, Number, OCR, Pattern, Question, WJEC, bitesize, collins, equations, exam, expressions, foundation, graphs, higher, learn, notes, preparation, questions, revision, test
Teaching tool for solving mathematical examples and algebraic expressions. The application provides a solution to the broken steps, and if necessary - all math will be solved graphically - in a column.
Solution fractions, calculating the discriminant, all as required when writing to a school notebook students of all classes.
Great as an educational tool, as a means of checking assignments, and as an assistant in the preparation of assignments.
Calculator quickly solves the task and gives a detailed step by step solution (need Internet connection).
Application gives you all calculations in detail and shows how to:
- convert improper fractions to mixed numbers;
- convert fractions to a common denominator;
- simplify fractions;
- convert mixed numbers to improper fractions.
Calculator with detailed solutions helps you better understand how to solve task with fractions. And always will help parents check homework of their children.
You can always use this and many other mathematical online calculators by visiting my website OnlineMSchool.com.
NaN Geometry Solver is the most advanced application for solving geometry problems. There is a complete solution delivered for each issue to satisfy every teacher or student.
The application solves every algebraic problem including those with:
you can also use parentheses, decimal numbers and Pi number.
An advanced validation of data entry allows you to find the errors quickly and corrects them for you immediately.
NaN Geometry Solver will calculate all the parameters of the figure, if you enter the necessary data. The order of data entry depends on you!
- Do you want to calculate a side of the square? No problem. Nan Geometry Solver will do it for you.
- Do you have an angle and a side of the right triangle? Perfect. Other values can be calculated.
None of your geometry tasks will be a problem now with NaN Geometry Solver. This application has very advanced, powerful and easy - to - use interface.
Additionally, it contains all the useful formulas which you will need to solve geometry tasks. But thats not enough! You do not have to figure it out how did you get a result. This application not only gives you the solution, it also shows you all the formulas which had been used. Pythagorean Theorem, sines and cosines are no longer a problem.
This application is able to do calculation on the following figures:
- equilateral triangle
- right triangle
- isosceles triangle
- triangle 30-60-90
- right trapezoid
- isosceles trapezoid
- regular hexagon
- regular tetrahedron
- square prism
- regular Pentagon
- Triangular prism
- inradius and circumradius of cube
- Square pyramid
- Triangular pyramid
- Thales' theorem
- Truncated cone
- Regular octagon
- Regular dodecagon
- Hexagonal prism
- Hexagonal pyramid
- You can calculate the inradius and circumradius on a square or an equilateral triangle
- Lots of formulas useful in solving tasks.
Tags: math, school, geometry, task, dexter, calculator
AutoMath is a great way to check your work, study or even to teach yourself math.
Here are some of AutoMath's Photo Calculator Features:
- Quick and Accurate Results
- Step by step tutorials
- No internet required
- Can solve simple to advanced math questions
- 250+ Mathematical Functions
- Handwritten questions are coming soon and are not currently supported
AutoMath Photo Calculator Currently supports:
Addition, Subtraction, Multiplication, Fractions, Division, Inequalities, Powers, Polynomials, Linear Equations,
Square Roots, Trigonometry, Algebra, Simplification, and Basic Algorithms
AutoMath Smart Text Calculator supports: (photo calculator not yet available for most of the below)
Any other math problems such as calculus, equation systems, complex math, graphing, table of values, and more
Calculus, Equation Systems and the ability to scan handwritten questions
Your very first photo will copy data files which will take longer then normal. After the initial photo it will be a lot quicker.
Example Video : https://www.youtube.com/watch?v=QYladg1nCYM
Graphing Example : https://www.youtube.com/watch?v=EpIA7JhDZ_Q
Quick Mode Example : https://www.youtube.com/watch?v=GtGmWHB3FZQ
Decide the future of AutoMath by Beta Testing: https://plus.google.com/communities/112210106892044446358
✔ A complete porting of the famous iPhone version!
✔ 8 apps in 1: 7 calculators and 1 form!
✔ Over 1000 formulas, definitions and theorems! The more complete form on Android Market.. constantly updated!
✔ 7 magnificent Utilities to help you in the exercises: Quadratic Equations Solver, Fraction Approximator, Graphic Calculator, Advanced Calculator, Systems Solver, Matrices Solver, and math Glossary!
✔ Beautiful graphical user interface, simple and intuitive!
✔ Support for new High Resolution devices!
✔ Very complete form, divided into sections for an easy consultation!
✔ More than 50 Quizzes on the topics to test your knowledge!
✔ Links to Wikipedia for every topic!
✔ Possibility to try iMathematics for free or unlock it completely buying iMathematics Pro!
COMING IN NEXT UPDATE…
● Differential Equations
Perfect for checking homework, learning mental arithmetic, computing "in the column" solutions to complex expressions with fractional numbers and quadratic equations of any complexity.
2D shapes: triangle, circle, square, rectangle, trapezoid, pentagon, parallelogram, rhombus, ellipsis, sector of a circle, annulus, sector of an annulus.
3D shapes: pyramid, sphere, cube, cuboid, cone, cylinder, prism, tetrahedron, ellipsoid, truncated pyramid, truncated cone.
Convenient and understandable interface. Picture of each shape with denoted variables that are necessary for using a particular formula. Formulas with explanations to different variables. The whole solution sequence.
This app will help you to find out volume and surface with different datas.
25 different shapes! 48 various formulas!
If you have any problems, you have found a mistake in the app or you have any recommendations concerning the development of the app, please write here: email@example.com
- Irrational inequations
- the probability
- Random variables
- Complex numbers
- Z transform
- Fourier transform
- Laplace transform
Mathinary is a powerful educational math tool for students and parents who help their children with math.
Mathinary contains formulas, explanations and calculators. The calculators give explanations, intermediate results and final results. The calculators are simulating how a person would calculate the result, by showing every step of the calculation including descriptions.
The topics in Mathinary are described with text, which has been carefully written to avoid difficult words, and making it simple for students and their parents to understand math.
Mathinary is an invaluable app for children in school, their parents and others who needs help with math or those who just wants to freshen up their knowledge.
Mathinary is concentrated on math in school from the 5th to the tenth grade, but is also covering topics used in higher educations.
* PLANE GEOMETRY
Annulus, circle, circle sector, circle segment, lines and points, parabola, parallelogram, polygon, quadrilateral, rectangle, rhombus, square, trapezoid, triangle, unit circle, vectors
Cone, frustum cone, cylinder, parallelepiped, prism, pyramid, frustum pyramid, sphere
Area, currency, degrees and radians, length, scale, speed, time periods, time units, volume
Annuity loan, annuity savings, currency conversion, future value, percentage, value added tax
* Numbers & Algebra
Addition - long, binary numeral system, divisibility rules, division – long, exponents, fractions, linear equation, multiplication – long, order of operations, parentheses, quadratic equation, roman numerals, roots, sets of numbers, simplification, subtraction –long
Exponential functions, inversely proportional function, linear function, power function, proportional function, quadratic function
* Probability & statistics
Binomial distribution, charts, combinatorics, observations, probability, set theory
Fractions / least common denominator, multiplication 10x10, multiplication 12x12, multiplication 20x20
* Math games
Multiplication game, order of operations game
The developers can be contacted within the app, in the section “ABOUT” and then “Contact us”