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By Riccardo Pareschi.

Freeware + source 26 Feb 1999


A simple calculator with Euro conversion in a unit. Paste result to clipboard.


  • Status: Fully functional
  • Source: Included
  • Size: 24kB

Platforms: D4

ExEntryC Calculator v.1.1

By ExEntryC.

Freeware + source 12 Nov 1998


Calculator component with on screen history ticket, ticket printing and user definable precision, up to 14 significant digits and 1 memory register.


  • Status: Fully functional
  • Source: Included
  • Exe demo: included
  • Size: 137kB

Platforms: D2

Four Functions Calculator

By Leng Vang.

Freeware + source 16 Jun 1997


Four function calculator ( +, -, / and *).


  • Status: Fully functional
  • Source: Included
  • Size: 7kB

Platforms: D2


By Khamza Davletov.

Freeware + source 10 Oct 2005


A package of 5 components for:
  • Discreting a function
  • Discreting the 1st derivative of a function
  • Discreting 2nd derivative of a function
  • Discreting function of 2nd order differential equation (Methods: Euler, Euler-Cauchy, Runge-Kutta)
  • Discreting function of 2nd order differential equation
  • And an XY-Plot component for quick graphing these functions.
  • Easy to use.


  • Status: Fully functional
  • Source: Included
  • Exe demo: included
  • Size: 259kB

Platforms: D2005, D6, D7

Parse components 2017 v.2.1

By Yuriy Pisarev.

Freeware + source 10 Jul 2017


Parse components represent a high-speed math parser. In other words it is expression evaluator for Delphi developers that performs high-speed (about 10 million evaluations per second) mathematics and boolean calculations. All components are available for Delphi 6, Delphi 7, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Delphi 10 Seattle, Delphi 10.1 Berlin. Please note that the samples do not require components installation (however installation is possible and in case when installed you find the components on "Samples" page of the pallete). You may open the Delphi project file (*.dpr) in the sample folder and simply run it. Fully functional TGraph component is included. The sample showing how to use it is in "Building graph in rectangular and polar coordinate systems" folder.


  • Status: Fully functional
  • Source: Included
  • Exe demo: included
  • Size: 2 692kB

Platforms: D2005, D2006, D2007, D2009, D2010, DX, DX.1, DXE, DXE2, DXE3, DXE4, DXE5, DXE6, DXE64, DXE7, DXE8

TCalc v.1.0

By Pavlos Dimitriadis.

Freeware 15 Mar 1999


A Fast Expression Evaluator for functions. Converts a given formula into it's value. Lot of functions included, like sin(), cos(), tan(), arcsin(), arccos(), arctan(), sinh(), cosh(), tanh(), arcsinh(), arccosh(), arctanh(), exp(), ln(), log().... Free for non-commercial use.


  • Status: Fully functional
  • Source: Included
  • Exe demo: included
  • Size: 187kB

Platforms: D2, D3, D4

TCalculator v.1.1

By Dmitry M. Ivlev.

Freeware + source 15 Jun 1998


It's simple line interpreteur which can to be used for make calculator or for inner use. This parser can be easelly extends with one argument functions like Ln(), Sin() and so on and also can store temporary results in dynamic variables using them late. Parser understand numbers in format C, Pascal and Assembler and also degrees in special format. For get/set value of variables and call functions interpreteur uses callback function call. Here also TCalculator component used line interpreteur and handle dynamic variables and functions access.


  • Status: Fully functional
  • Source: Included
  • Size: 6kB

Platforms: CB1, D2, D3

TnrWinCalc v.3.14

By DeepSoftware.

Shareware 25 May 2008


The nrWinCalc is unique component for manipulate the execution of the standard Windows calculator (calc.exe). Look some powerful features of the component:
  • property Visible - for open and close calculator;
  • property Mode - for choose Standard/Science mode;
  • property Radix - for choose Bin/Oct/Dec/Hex radix;
  • property Value - for get/set value;
  • property OnClose: TNotifyEvent - event on close calculator;
  • property OnEnterPressed: TNotifyEvent - super event;
  • full context help file;
  • ... and some more.


  • Status: Partially restricted
  • Source: On purchase/registration
  • price: $64
  • Exe demo: included
  • Size: 323kB

Platforms: C2k6, C2k7, CB3, CB4, CB5, CB6, D2005, D2006, D2007, D3, D4, D5, D6, D7

Vulgar Fraction v.1.0

By dihav.

Freeware + source 25 Feb 2006


Vulgar Fraction is a math unit for working with vulgar fractions.


  • Status: Fully functional
  • Source: Included
  • Size: 1kB

Platforms: D1, D2, D2006, D2007, D2009, D2010, D3, D4, D5, D6, D7

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