Enter scientific expressions clearly
Choose the angle mode before using trigonometric functions. In degree mode, sin(30) gives 0.5; in radian mode, sin(pi/6) gives 0.5. Use parentheses to group an expression and explicit multiplication between terms.
An expression such as 2 + 3 × 4 follows operator precedence and returns 14. For a different order, write (2 + 3) × 4, which returns 20. Invalid real-number operations such as division by zero cannot produce a valid result.
What is this calculator?
Calculate arithmetic expressions, powers, roots, logarithms and trigonometric functions in degrees or radians.
What can you use it for?
Use it when solving an exercise, checking a result, or working with the particular quantities shown in this form. Calculate arithmetic expressions, powers, roots, logarithms and trigonometric functions in degrees or radians.
How to use it
- Type a mathematical expression or use the keypad.
- Choose degrees or radians for trigonometric functions.
- Select Calculate (or Generate for random tools).
- Read the answer and any additional results below the form. Check the units and the limits of the method.
Formula and method
The parser uses standard order of operations. Powers associate to the right. A percent sign divides its preceding value by 100; it is not modulo.
Worked example
Expression: 2 + 3 × 4, using degrees for trigonometry. The result is 14 (result).
Assumptions and limits
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.
Frequently asked questions
Should I choose degrees or radians?
Choose degrees for angles measured in degrees and radians for angles measured in radians. For example, sin(30) is 0.5 in degree mode; sin(pi/6) is 0.5 in radian mode.
Which operation is evaluated first?
Parentheses and functions are evaluated before powers, followed by multiplication and division, then addition and subtraction. Use explicit multiplication between values.
What inputs does the Scientific Calculator need?
Use an expression and the correct angle mode. Read the answer and any additional results below the form. Check the units and the limits of the method.
What assumptions apply to the Scientific Calculator?
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.