Top Online Calculators for Algebra, Equations, Integrals, and More!

[benorin]

Best online calculators

Here are a few websites that have online calculators:

www.quickmath.com - powered by webMathematica: this site is very handy and will do algebra (factoring, simplify, partial fraction decomposition, expand), solve equations/inequalities (single or a system), plot equations/inequalities (single or a system), derivatives, definite or indefinite integrals, and do matrix arithmetic/inverses/determinants.

Suggestion: for those who post "Will someone please check this [problem/integral/derivative/calculation]..." or the like, cut and paste the above paragraph as a reply.

www.integrals.com - powered by the Mathematica engine: just what it seems, but it will only do indefinite integrals.

www.livephysics.com - has these tools: Evaluate Function, Function Grapher, 3D Function Grapher. Very nice since the 3D Function Grapher allows for you to plot a 3D function and then cut and paste customized UBB code from the page into a forum post to embed the plot graphic you made into your post (see add).

http://people.hofstra.edu/faculty/Stefan_Waner/RealWorld/utilsindex.html - includes these categories of utilities/tools: Graphers, Regression Tools, Matrix and Linear Algebra Tools, Probability and Statistics Tools, Calculus Tools, Math of Finance Tools, and Miscellaneous.

 

[radou]

Suggestion: for those who post "Will someone please check this [problem/integral/derivative/calculation]..." or the like, cut and paste the above paragraph as a reply.

Good idea.

 

[Gokul43201]

Handy links ben. Thanks!

 

[robphy]

Dont forget that google can do some simple arithmetic calculations:
Here is 4*atan(1): http://www.google.com/search?q=4*atan(1)
Looks like Yahoo and MSN can as well
http://search.yahoo.com/search?p=4*atan(1)
http://search.msn.com/results.aspx?q=4*atan(1)

...ah but google can do
2*mass of sun : http://www.google.com/search?q=2*mass+of+sun
and
G*mass of earth/(radius of earth)^2 : http://www.google.com/search?q=G*mass+of+earth/(radius+of+earth)^2

 

[benorin]

An example

This post is an example of this I posted on www.mathlinks.ro

Differentiate

(t^2+1+1/t)^2

t/(sq.root(1+t^4))

Go to http://www.hostsrv.com/webmab/app1/MSP/quickmath/02/pageGenerate?site=quickmath&s1=calculus&s2=differentiate&s3=basic for these kind of questions, click on "Differentiate" on the left-hand plane; for example, type (t^2+1+1/t)^2 into the field labeled "Differentiate" and t into the field labeled "with respect to" as shown here:

http://ezimagecenter.com/out.php/i203_quickmathDiffExamplesimpedit.JPG

and either press ENTER or click the differentiate button to get the result page shown here:

http://ezimagecenter.com/out.php/i202_quickmathDiffExamplesimpResult.JPG

you try the other one.

 

[benorin]

Another useful website here. It does derivatives step-by-step, explaining each step by the derivative rules, very handy.

One more website: calc101.com. Some of this site's features require you to purchase a membership ($25 per year) but much of it is free. Check out the partial fraction decomposition page, or the polynomial long division page: very nice.

 

[dextercioby]

This calc101.com has certain limits. I tried $\int \sqrt{\cos x}{}dx$ and it returned "sorry, calc101 cannot do this integral. Please try another function".

Daniel.

 

[benorin]

This calc101.com has certain limits. I tried $\int \sqrt{\cos x}{}dx$ and it returned "sorry, calc101 cannot do this integral. Please try another function".

Daniel.

Use www.quickmath.com[/url] or [url]www.integrals.com[/URL] for integration ability, cal101.com is for showing steps mostly.

 

[Redbelly98]

Dont forget that google can do some simple arithmetic calculations:
...

Just found this ol' thread, and wanted to add that google can do unit conversions as well. For example:
http://www.google.com/search?hl=en&safe=off&q=50+miles/hr+in+m/s&btnG=Search

 

[Defennder]

WIMS has a good collection of online calculators:
http://wims.unice.fr/wims/

I can't link directly to the page URL since it looks like one of those which expire after a while, but here is a screenshot:
http://img27.imageshack.us/img27/3669/wims.jpg

 

[Greg Bernhardt]

Here are a few free resources for graphing and calculating

Type in equations into google's box and it will give you a simple read out answer
http://www.google.com/insidesearch/features.html#calculator

Famous for giving detailed analysis of computations and facts.
http://www.wolframalpha.com/

Extensive list of simple javascript calculators for various specific tasks
http://www.calculatorsoup.com/

"Plugin free" graphing calculators
http://my.hrw.com/math06_07/nsmedia/tools/Graph_Calculator/graphCalc.html
https://www.desmos.com/calculator/
http://www.mathworksheetsgo.com/tools/free-online-graphing-calculator.php

 

[luisperezphd]

If all you are looking for is a basic online calculator I suggest taking a look at http://groovii.com/online-calculator/simple/

 

[pi3141592654]

A mobile calculator/computational engine can be found at:

http://rapidcalculator.com

Besides the functionalities of a usual calculator, you can do graphing/matrices/algebra/calculus on it too.

 

[OMGCarlos]

These are a few other free HTML5 calculators:

Graphing Calculators:
(2D) FooPlot: http://fooplot.com
(2D) Graphr: http://www.graphr.org/
(3D) GraphyCalc: http://www.graphycalc.com/

Algebra: http://www.myalgebra.com/
Algebra, Trig, Calc: http://www.mathscoop.com/calculators/calculus-calculator-online.php

 

[TomasRiker]

Hello,
I have created two online calculators which (I hope ) can prove useful:

Derivative Calculator (with steps)
It can do first, second, third derivative (symbolic) with respect to any variable and optionally simplify input and output. The input formula is being displayed as a LaTeX formula while typing, in order to minimize input mistakes (such as writing 1/a+b when you really mean 1/(a+b)). This calculator can show the calculation steps.

Integral Calculator (no steps feature yet)
Same user interface as the above one, but it can do antiderivatives and definite integrals (also some improper ones).

 

[swakopmund]

The following site is good for 2D and 3D graphing:

http://www.plotgraphs.com/

Furthermore it can also calculate symbolical derivatives of the expressions and plots them at the same time:

http://www.plotgraphs.com/function-derivatives.html

The input window for the expressions is really handsome :-)

 

[vect0r]

Check out Meta Graphing Calculator --written in HTML5, does implicit equations and produces point table. Also can do matrix mathematics and stats calculations like T-tests and regressions.

 

[SteamKing]

If anyone is interested in having a classic HP programmable calculator application, hp41.org has an emulator program for the HP-41 series programmable calculators from the 1980s. There is a picture of the HP-41 keyboard with clickable keys and the LCD 1-line display.

The website also has copies of the program guides for various application packs and you can browse the old HP software library for these machines. The calculator app is programmable as the real deal was and runs any old HP-41 programs you might have laying around. You have access to the calculator memory for storing results and your programs can be read from/written to your hard drive.

 

[roshko]

have a look at http:///www.fxsolver.com

has more than 1500 formulas to calculate and allows for a full parametric solution of math/physics problems...

 

[john smith1253]

some useful free online calculators can be found in this website:
online-calculator.biz
including simple, scientific and matrix online calculators ...
hope helps

 

[George Miller]

Yup!

 

[zarajohn]

HI,
At the time many website provides free calculator. For Example: Binary & Hexadecimal Calculator (Convert between binary, hex and decimal), Cube Root Calculator (reduces cube roots to simplest radical form), Bitwise Calculator, Completing The Square Calculator ,Distance Formula Calculator, Factor Calculator.
Thanks
ZARA@

 

[Raghav Kapur]

Some useful calculators can be seen on www.calctown.com

RF Calculators on everything RF are also quite useful - www.everythingrf.com/rf-calculators