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❶For now, here I leave for you a area and perimeter of a circle calculator , and an area and volume calculator for cylinders Polynomial Operations Calculator November 25th, This one is a solver that user were clamoring for:


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Statistics Tutorials August 2nd, I have found two excellent tutorials one about hypothesis testing , and the other one about statistics and parameters. Both are great reads. Cramer's V Calculator December 25th, The idea of "effect size" is very relevant in statistics. If often happens that a test statistics is significant, but the association has no practical meaning. This is because a extremely large sample size alone can find significant n extremely small effect. Cramer's V is a statistic that assess the effect size or practical significance of the association between nominal variables.

Critical Correlation Calculator November 29th, Typically found in special tables, here you have a critical correlation calculator. Geometry Solvers November 28th, Lots of people were asking for geometry solvers and here they are. I have started a new section for Geometry and I'll be adding more solver on a continuous basis.

For now, here I leave for you a area and perimeter of a circle calculator , and an area and volume calculator for cylinders Polynomial Operations Calculator November 25th, This one is a solver that user were clamoring for: Let me introduce our Polynomial Operations Calculator , with which you can add, subtract and multiply polynomials, with the solution shown step-by-step. Also, we have started with MathQuill, and excellent option for enhancing the input of math.

Absolute Value Calculator November 23th, We expand even more our Algebra series with some more basic solvers, in this case, a absolute value calculator. Algebraic Expression Calculator November 19th, New solver in our Algebra series, now I have added a solver that evaluates all sort of algebraic expressions that can include any kind of operation sum, subtraction, multiplication, division , numbers, fractions, trigonometric functions, exponential functions, powers, roots, etc.

Check our Algebraic Expression Calculator. Fraction Operations Calculator November 19th, Continuing the series of Algebra solvers, I have added a solver that calculates operations between fractions and shows all the steps. Depending of the operation required it conducts the appropriate steps to reach the final fraction result, in reduced form.

Check out our fraction operation solver. Function Grapher November 17th, I have made a new function grapher to replace the old flash grapher we had. This time, I used the Google Chart format, that looks more modern and goes along the trend of JS charts. Fraction Reduction November 13th, I get a lots of requests for this one, so here it goes.

This is a fraction reduction tool fraction-reduction-lowest-terms. Next Algebra Solver in our series November 12th, This time, I added a greatest common divisor , or as it usually known as greatest common factor calculator. I took care to provide as much detail as possible in the calculations shown by the solver.

I have added a prime decomposition calculator , you type in a positive integer number and the solver tell you in a detailed way what is its prime decomposition. New Site Design September 8th, I am very pleased to announce that we have rolled a new site design, with a much improved mobile functionality. More Math Cracks January 31th, This time I decided to write on functions and how to deal with them.

Another Math Article January 20th, Another article. I'll be uploading them periodically. This next first Math Crack is about an easy explanation of derivatives. Math Cracks January 5th, I finally started a project that I have been wanting to undertake for a while.

It is the Math Cracks, which is the way I call to this short tutorials that attemp to explain hard math concepts in simple terms, step-by-step. The first Math Crack of the series is Integration by Parts. Site upgrade April 21th, A site update is coming soon. I will be changing the layout a bit so that to keep the solvers in a more organized way and the articles will be organized rather in blog format.

I will be adding a complete set of Algebra solvers, so stay tuned. More solvers February 4th, A couple of tutorials and solvers were added: Math Articles Minimum Sample Size December 7th, I have added a minimum sample size calculator for mean and proportion Many stats calculators December 5th, After long working hours, I've finished all the solvers required to cover all basic statistics topics. The new solvers are: Z-test for two means , Z-test for two proportions , T-test for two means , T-test for paired samples , Chi-Square Goodness of fit , and Chi-Square test of Independence.

Thanks to a guest writer, I just added a great article about online accounting curricula. You can check it here. Accounting Help November 11th, Found a very informational article about the do's and dont's of Accounting Homework Help. News November 11th, Great changes to improve user experience are coming very soon.

I have written recently many math and stats solvers that I'll be adding to the site. I've been polishing the scripts we already have and this is almost turning into a full time job. As many users are aware, we have had ads for the last few months, and even though I don't like ads, it is the only way to support the site, which is turning into a full time job by now.

I'm looking for a more efficient way of using ads so that the site can be ad-supported and it continue being free that way. Various Statistical Tests November 2nd, More stat tests done.

I have finished a t-test for one population mean with unknown population standard deviation and a Chi-Square test for one population variance. Pretty much as the other solvers I have added, they are simple to use: Z-tests October 31st, I've been working on these for a while and I finally finished them. I added a z-test for one population mean and a z-test for one population proportion. Very user friendly, define hypotheses, and parameters of the test, and a detailed step-by-step calculation is performed.

Histogram Maker October 20th, I just added a working histogram maker. You enter the dataset and the number of bins and a properly scaled histogram is rendered by the script. Bar Graph Maker October 9th, I have added a very cool bar graph maker. You enter the categories, the values associated with each of the categories, and a bar chart rendered by the script.

Mortgage Calculator October 8th, Not exactly the typical calculator we do, but I have had some requests for it, so I added a simple mortgage calculator tool to compute the monthly payment for a mortgage, under basic assumptions without considering PMI and insurance.

New math solver October 4th, I have uploaded a 2x2 system of linear equations solver. Update October 4th, I have updated the pie chart maker script. Confidence Interval Calculators October 2st, I have added two confidence interval calculators. Two more more probability calculators October 1st, We have two more probability calculators. HTML code on this page is well minified.

It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization.

Math Portal images are well optimized though. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to CSS files minification is very important to reduce a web page rendering time.

The faster CSS files can load, the earlier a page can be rendered. Our browser made a total of 40 requests to load all elements on the main page. The less responsive or slowest element that took the longest time to load ms belongs to the original domain Mathportal.

We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time. As for redirects, our browser was forwarded to http: Language claimed in HTML meta tag should match the language actually used on the web page. Our system also found out that Mathportal. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

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Algebra Help This section is a collection of lessons, calculators, and worksheets created to assist students and teachers of algebra. Here are a . Math Homework Help Engage New York (ENY) Homework provides additional practice for math that is learned in class. This site is intended to help guide students/parents through assigned homework.