Practical tools for measured work
Scientific calculator
Evaluate arithmetic, powers, factorials, logarithms and trigonometry with explicit angle mode.
Calculate the layout, check the diagram, then print the result for the shop or jobsite.
How it works
Use +, −, *, /, ^, parentheses and factorial !. Powers associate to the right: 2^3^2=512, and −2^2=−4. Constants are pi and e. Functions: sin, cos, tan, asin, acos, atan, sqrt, abs, ln, log, exp, floor, ceil, pow, min and max. The last three take two comma-separated arguments; the others take one. Use explicit multiplication, such as 2*pi.
Current-input example
The result above uses these exact values. This snapshot is included when the page is printed so the output can be checked against the original measurements.
- Arithmetic expression
- sin(30) + sqrt(9) + 2^3
- Angle mode
- Degrees
Primary result: Result: 11.5.
Before using the result
- Check the selected mode, units and input values before using the result.
- Read the assumptions and rounding rules; compare the worked example with your intended calculation.
- A numerical result does not supply missing context or change the stated limitations.
Limitations
A generic scientific calculator, not a TI-84 emulator. No stored programs, matrix mode or device-specific menus. Expressions are limited to 1000 characters, 256 tokens and bounded nesting; factorial accepts integers 0–170. Undefined, complex and overflowing results are rejected. Trigonometric functions follow the selected degree/radian mode.
Frequently asked questions
What should I verify before using this result?
Check the input values, units, dates and assumptions. Compare the method and its stated limits with the source relevant to your task.
Why might the finished result differ?
Results depend on the entered data and the model’s assumptions. Rounding, changing conditions or omitted factors can affect the comparison. Read the limitations before using the result.
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