Combinations, permutations, rectangular-polar conversions and more.
Easy use. Wide range and high precision calculations.

User's Manual

92 functionalities
Trigonometric and hyperbolic functions, logarithms and exponentials, combinations, rectangular-polar conversions, etc.

Other features:
- Results are copied automatically to the clipboard.
- Always visible option (the application window is always on top).
- Integer part, absolute value and factorials:  int x,  | x |,  x!
- Last answer function and command: ANS
- Last 32 expressions checking.
- 25 user's variables (memories) (they are saved even when the application is closed)
- 5 output formats
- 3 angular units: DEG, RED, GRA

- Width = 672 px,   height = 346 px

Fraction / pi fraction / rationalized root output format
We can see results in ordinary fractions, pi number fractions and rationalized root fractions.

download FREE Scientific Calculator CL70E
FREE Scientific Calculator CL70E full version
5 stars Award on 2000shareware
5 stars Award on 2000shareware
28 Scientific constants
A useful selection of constants for science and technology.

16 precision digits
Internal calculations are performed with 16 digits to get exact results.

FIX / SCI output format
FIX: Fixed number of decimal places.
SCI: Fixed number of significant digits in scientific notation.

Very large numbers in scientific notation
This wide range allows us to deal any challenge of calculation.

28 levels of parentheses
We can nest until 28 levels of parentheses in our expression calculations.

FREE Scientific Calculator CL70E is clean!
Shown actual size - Non contractual image
Main features


Windows XP - Vista - 7 - 8 - 10


CL70E  -  Free scientific calculator

Operating system


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New version 2.1.1