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Standard calculator
Scientific calculator
Matrix calculator
Statistics calculator
Enter numbers separated by commas, for example 10, 20, 5, 8.5.
Graphing calculator
Use x as the variable, for example sin(x), x^2−3 or 1/x.
Enter a function and press Plot. Use Describe for a spoken analysis, or Play to hear the curve as sound; pitch rises with the value, swept left to right.
Calculus calculator
Numerical Integration
Use x as the variable, for example x^2 or sin(x).
Derivative at a point
Programmer calculator
Unit converter
Guided formula solvers
Quadratic formula: solve ax² + bx + c = 0
Enter the three coefficients, then solve.
Pythagoras: a² + b² = c² (c is the hypotenuse)
Fill in two sides, leave the unknown one blank.
Simultaneous equations (two unknowns)
Enter all six coefficients.
Circle: area and circumference
Enter a radius.
Percentage change
Enter the original and new values.
Compound interest
Enter principal, rate and number of periods.
Sine rule: find a side (angles in degrees)
a ⁄ sin A = b ⁄ sin B. Enter angle A, side a (opposite A) and angle B to find side b.
Enter angle A, side a and angle B.
Cosine rule: find a side (angles in degrees)
c² = a² + b² − 2ab·cos C. Enter sides a, b and the included angle C.
Enter sides a and b and the angle C between them.
Cosine rule: find an angle (degrees)
Enter all three side lengths to find the angle C, opposite side c.
Enter all three side lengths.