【實用工具app】Eval|最夯免費app

An advanced scientific calculator with support for complex numbers and fractions. Free graphing calculator also available.

Features:

- Complex (imaginary) numbers (a+bi or polar form)

- Probability distribution functions (binomial, chi-square, Gaussian (normal), geometric, inverse Gaussian, Poisson, Student-T PDF)

- Cumulative PDFs (CDF)

- Numbers stored internally as fractions

- Mixed/improper fractions

- Function integrals and numerical derivatives

- Live Calculation: evaluate expressions as they are entered

- Trigonometric functions for complex numbers

- nCr and nPr (Combinations and permutations)

- Degrees, radians, or gradians

- Haptic feedback

- Unlimited expression history

- Physical and chemical constants

- User-defined variables

NOTES:

- To change the display mode (fraction, polar, etc.), click on an evaluation.

- To use internal fractions, press the Divide [÷] key instead of entering decimals. For example, press [1][÷][4] instead of 0.25.

- Improper fraction mode will display mixed fractions if they're approximated. It will only display improper fractions when they can be used internally.

- Decimals up to 5 places will be converted to internal fractions.

- For more information, go to Menu > Settings, then Help and Information or Enumeration of Functions.

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