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Calculator

Tool to make symbolic computations. A formal calculator to make exact scientific calculations, with parenthesis, variables, etc.

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Tag(s) : Symbolic Computation

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Calculator

Formal Calculator






Solve an equation (find x)

⮞ Go to: Equation Solver

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!
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Cite as source (bibliography):
Calculator on dCode.fr [online website], retrieved on 2024-06-14, https://www.dcode.fr/formal-calculator

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