Tool to make symbolic computations. A formal calculator to make exact scientific calculations, with parenthesis, variables, etc.
Calculator - dCode
Tag(s) : Symbolic Computation
dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!
Calculator
Answers to Questions (FAQ)
What is a formal calculator? (Definition)
A formal/symbolic calculator is an computation program that allows all calculations (with or without unknown) and answer an exact result (or approximate) with the most simplification possible.
It can also be used to perform classic numerical calculations.
How to make a formal calculation?
Write the calculation to be performed (if there are variables or functions, respect the syntax).
Example: Simplification of polynomials with variable: $$ x^2-(x-1)(x+2)+2x = x+2 $$
Example: Computation (addition, subtraction, multiplication, division) with unknowns: $$ a+1+a-2 = 2a-1 $$
These are calculations with variables, but not an equation resolution. dCode has also an equation solver, and other calculus tools such as derivatives, primitives, integrals, etc.
What are allowed functions?
Most common functions (parenthesis are mandatory) are
| sqrt() or √() | square root |
|---|---|
| exp() | exponential |
| log() or ln() | natural logarithm (base e) |
| log2() | logarithm (base 2) |
| log10() | logarithm (base 10) |
| cos() | cosine |
| sin() | sine |
| tan() or tg() | tangent |
| arcsin() or asin() | arc sine |
| arccos() or acos() | arc cosine |
| arctan() or atan() | arc tangent |
| csc() | cosecant |
| sec() | secant |
| cot() | cotangent |
| arccsc() or ascs() | arc cosecant |
| arcsec() or asec() | arc secant |
| arccot() or acot() | arc-cotangent |
| cosh() | hyperbolic cosine |
| sinh() | hyperbolic sine |
| tanh() or tgh() | hyperbolic tangent |
| arcsinh() or asinh() | hyperbolic arc sine |
| arccosh() or acosh() | hyperbolic arc cosine |
| arctanh() or atanh() | hyperbolic arc tangent |
| csch() | hyperbolic cosecant |
| sech() | hyperbolic secant |
| coth() | hyperbolic cotangent |
| arccsch() or ascsh() | hyperbolic arc cosecant |
| arcsech() or asech() | hyperbolic arc secant |
| arccoth() or acoth() | hyperbolic arc cotangent |
| abs() | absolute value |
| sign() | function sign |
| arg() | argument |
| im() | imaginary part |
| re() | real part |
| ii (double i) | i (imaginary unit) |
What is the difference between a formal calculator and a standard calculator?
A formal calculator can perform symbolic calculations, while a standard calculator performs numerical calculations. The formal calculator preserves variables and symbolic expressions.
Source code
dCode retains ownership of the "Calculator" source code. Except explicit open source licence (indicated Creative Commons / free), the "Calculator" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, breaker, translator), or the "Calculator" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Calculator" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
Reminder : dCode is free to use.
Cite dCode
The copy-paste of the page "Calculator" or any of its results, is allowed (even for commercial purposes) as long as you cite dCode!
Exporting results as a .csv or .txt file is free by clicking on the export icon
Cite as source (bibliography):
Calculator on dCode.fr [online website], retrieved on 2023-12-05,
