# Latest published math calculators June 2015

Here are the highlights from the latest math calculators published. We’ve covered a few math concepts like the arithmetic and geometric sequences, the statistical linear regression model and even economic equilibrium.

## Fibonacci calculator

• figures the nth term (xn) in the sequence and the sum of the sequence with the help of the golden ratio;
• you can easily understand the model with an example calculation.

Go to the Fibonacci calculator!

## Linear regression calculator

• discovers the intercept and slope;
• draws the line of best fit and can be used with all kinds of data sets;
• all the formulas used and extra explanations are below the form as well.

Go to the Linear regression calculator!

## Geometric sequence calculator

• finds a specific number in a newly created geometric sequence according to your needs;
• uses the scale number, common ratio and your choice of the nth number to find;

Go to the Geometric sequence calculator!

## Arithmetic sequence calculator

• get your chosen nth number within an arithmetic sequence of your choice;
• you need to specify the first number, the common difference or step and the order of the number you want;
• there are also definitions, formulas and examples to consult after the form.

Go to the Arithmetic sequence calculator!

## Covariance calculator

• determines the covariance factor for two samples with variables x, y;
• outlines the formulas used from simple means to sample and population covariance.

Go to the Covariance calculator!

16 Jun, 2015 | 0 comments | 1617 views