## Math

Cosine CalculatorEnter the adjacent and hypotenuse angle values and this calculator will solve the cosine angle for you.

Expression SolverJust enter a math expression and this calculator will evaluate the expression for you.

Length Adding CalculatorThe Length Adding calculator allows you to add feet and inches.

Percentage CalculatorThe percentage calculator allows you to find out what the amount, the percentage, the percent amount, the percent increase or the percent decrease is, if you know any of the two.

Perches to Square Meters and Square Feet CalculatorOnline Perches to Square Meters and Square Feet Calculator.

Prime Number CalculatorEnter a number and this calculator will instantly tell you if it is a prime number or not.

Pythagorean Theorem CalculatorOne of the most useful formulas of geometry, the Pythagorean Theorem, can be applied to the numbers you enter in this simple calculator! Just enter A and B and the calculator solves for C.

Quadratic Equation CalculatorA calculator to figure the square root of the number you enter. Just enter the coefficients for the Ax^2 + Bx + C = 0 equation and the calculator will output the solutions (if they are not imaginary!). Neat!

Sine CalculatorEnter the opposite and hypotenuse angle values and this calculator will solve the sine angle for you. Neat!

Stem and Leaf PlotThis calculator allows you to create a special table where each data value is split into a stem (the first digit or digits) and a leaf (usually the last digit).

Tangent CalculatorThis calculator will solve the tangent angle for you, just enter the opposite and adjacent angle values and press Calculate.