Links to free online math computation.
This is an anonymous page for my personal use. If you have comments or suggestions, why don't you rip the source and make your own page.
Decimal to Fraction Converters
(CalculatorSoup) Shows the steps.(RapidTables) Has a neat refresher course.
(MathIsFun) Not sure how this handles the repeating block.
(WebMath) Not sure how this handles the repeating block.
(TheCalculatorSite.com) Explicitly handles the repeating block.
Determinant Evaluation
(Reshish) Haven't tried, looks ok.(Symbolab) Haven't tried, looks ok.
Haven't tried, looks ok.
(eMathHelp) Haven't tried, looks ok.
Provacative. (MatrixCalc.org)
Same site but different approach-Laplace's Method.
Haven't tried, looks ok.
On-line Graphing Calculators
(Desmos) This is fun.(Symbolab) Nice zoom feature.
(Symbolab) Different approach, similar to Desmos.
Looks like another winner. (Mathway)
(MathPapa) Good but have to type in numbers to zoom.
(Meta-Calculator) Start by choosing from a menu.
(MathIsFun) Graphs bunctions, the name says it all.
(Wyzant) You select your window size as part of the submission.
Numerical Integration
(Integral-Calculator) Claims to do indefinite integrals too.(eMathHelp) Haven't tried.
Haven't tried. (NastyAccident)
(Desmos) Fancy, looks like it graphs the function too.
(MathIsFun) This one graphs too. Nice.
(PlanetCalc) Simpson's and Newton-Cotes offerings here.
(keisan.casio) Looks like this has simple parsing of your function. Up to 2048 partitions.
Partial Fraction Calculators
(WolframAlpha) Haven't tried, looks ok.(Symbolab) Haven't tried, looks ok.
(eMathHelp) Haven't tried, looks ok.
Haven't tried, looks ok. (Geogebra)
(MathWay) Haven't tried, looks ok.
(PolyMathLove) Haven't tried, looks ok.
Polynomial Division (aka Synthetic Division)
(Wolfram) Limited, divisor must be x+1. But displays the steps.Looks more versatile, need to test. (Calculus-Calculator.com)
Looks like CAN DO. (MahCelebrity.com)
Likewise, looks versatile. (WebMath.com)
...with remainders. (CalculatorSoup)
(eMathHelp) And another.
(Symbolab) Very nice, displays all the steps, has remainder.
Polynomial Evaluation
Symbolab, single variable in x.Multi-variable evaluator.
A variety of number crunchers for cheating on homework. Mathpapa.
Another Mathpapa evaluator.
Mathportal, shows how to enter the expression.
Does a variety of things besides evaluate. Xrjunque.
Has detailed instructions, need to follow though straigforward. Gyplan.
Calctool.org. Straightforward up to seventh degree polynomial evaluation.
Prime Factors of an Integer
Does the job. (CalculatorSoup)This one is special, highly recommended. (Alpertron)
This displays the primes in a tree. (One Dad, Four daughters...)
Nice, active PFoI, no button. (MathIsFun)
Does the job, has ads. (MathWarehouse)
A variety of calculators available (Calculator.net)
Has "math with Javascript" link". (javascripter.net)
Root Finders, Quadratic, Cubic, and degree = n roots
Quadratic cracker from CalculatorSoupQuadratic and prefixes with imag when imaginary. (Math.com)
Start typing the equation in the blank and dropdowns will appear. More calculators in sidebar.
Very nice, easy to use, graphs your equation.
Quadratic but need to clear bottom window each time.
Shows you the details of graphing your own.
Clean and straightforward, provides details. Let's you choose the number of significant digits.
A little too elementary.
Very nice, graphs the Quadratic in a pop-up. (Wolfram)
Wolfram's cubic cracker, looks like it also graphs.
A classic, the 1728 cubic cracker. Calculator Soup cubic cracker, use that clear button!
Symbolab cubic cracker. Has n degree polynomial option.
Good site with many different calculators.
Looks like no-nonsense. Xrjunque.
A Wolfram roots-finder.
Dcode root finder.
With just one click... Cute!
Drill site.
A quartic calculator with disclaimer.
Planetcalc version, explains details.
Interesting sidebar, also includes a log of bug fixes.
Symmetrical Components Calulators
Relay tech version one.Relay tech version two.
Looks simple, straightforward. (RelayApplication.com)
Nice graphics. (Phillipopambuh.info)
Systems of Linear Equations
Click inside the demo to open the calculator. (MathPapa)Looks like it does some non-linear systems. (Symbolab)
Cracks up to four dimensions. (WolframAlpha)
Supposedly graphs the 2x2 case. (QuickMath.com)
3x3 system that shows elimination steps. (MathPortal.org)
2x2, 3x3, and 4x4 solutions. (MathPortal.org)
All I see here is 2x2? (HackMath.net)
Claims to go up to a 5x5 and handle complex coefficients. (eMathHelp)
Matrix inversion and other options. (MatrixCalc.org)
Beautiful graphing solver for 2x2s. (Desmos)