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Independent, nonprofitable software & charity platform of Dr. Larry Nylund
Regression Analysis  Graphing  Scientific Calculator  Unit Conversion 
Desktop calculator  DesktopCalc v2.1.14 

Find values for your equations in seconds
DesktopCalc is an enhanced, easytouse and powerful scientific calculator with an expression editor, printing operation, result history list and integrated help. DesktopCalc gives students, teachers, scientists and engineers the power to find values for even the most complex equation set.
Understandable and convenient interface
DesktopCalc combines fast "justoneclick" interface with broad set of functions. It was designed as a tool that is convenient for both elementary and scientific calculator. DesktopCalc features include the following:
 Possibility to enter mathematical formulas as with a keyboard as with builtin buttonpanels
 Scientific calculations  unlimited expression length
 Syntax highlight of math expression and proper operator precedence
 Parenthesis compatible
 Scientific notation
 Calculation range:
 maximal positive number: 1.797E+308
 minimal positive number: 2.225E308
 All functions, mathematical and physical constants can also be used in expression
 40 trigonometric, logarithmic, hyperbolic and algebraic functions
 50 builtin most common mathematical and physical constants
 Clipboard smart functionality
 Cut, Copy and Paste operations
How to work with the program.
1. First, you must enter a formula into the expressioneditor either by typing on the keyboard, pressing the buttons on the calculator with the mouse, or a mixture of both.
You can use next operations (as expression syntax):
Operators: +  * / and ( ) [parentheses]
Builtin Functions... [Unless otherwise indicated, all functions take a single
numeric argument, enclosed in parentheses after the name of the
function]
Algebraic: Abs, Square, Sqrt, Power(x;z)
[= x raised to power of z; Use semicolor as the listseparator]
Transcendental: Exp, Ln [natural], LogBase10, LogBase2, LogBaseN(Base;x)
Trigonometric: Sin, Cos, Tan, Cot, Sec, Csc
Other Trig: ArcSin, ArcCos, ArcTan, ArcCot, ArcSec, ArcCsc, Coversine, Exsecans, Haversine, Versine, ArcTan2(x;z)
Hyperbolic: SinH, CosH, TanH, CotH, SecH, CscH
Other Hyp: ArcSinH, ArcCosH, ArcTanH, ArcCotH, ArcSecH, ArcCscH
Miscellaneous: Pythag(v;h)
[Pythagoras, where v and h denote vertical and horizontal lengths, respectively]
Constants:{Mathematical constants}
Pi [= 3.1415926535897932384626433832795] {Pi}
PiOn2 [= 1.5707963267948966192313216916398] {Pi / 2}
PiOn3 [= 1.0471975511965977461542144610932] { Pi / 3}
PiOn4 [= 0.78539816339744830961566084581988] {Pi / 4}
Deg [= 57.295779513082320876798154814114] {180 / Pi}
Bernstein [= 0.2801694990238691330364364912307] {Bernstein constant}
Cbrt2 [= 1.2599210498948731647672106072782] {CubeRoot(2)}
Cbrt3 [= 1.4422495703074083823216383107801] {CubeRoot(3)}
Cbrt10 [= 2.1544346900318837217592935665194] {CubeRoot(10)}
Cbrt100 [= 4.6415888336127788924100763509194] {CubeRoot(100)}
CbrtPi [= 1.4645918875615232630201425272638] {CubeRoot(PI)}
Catalan [= 0.9159655941772190150546035149324] {Catalan constant}
Sqrt2 [= 1.4142135623730950488016887242097] {Sqrt(2)}
Sqrt3 [= 1.7320508075688772935274463415059] {Sqrt(3)}
Sqrt5 [= 2.2360679774997896964091736687313] {Sqrt(5)}
Sqrt10 [= 3.1622776601683793319988935444327] {Sqrt(10)}
SqrtPi [= 1.7724538509055160272981674833411] {Sqrt(Pi)}
Sqrt2Pi [= 2.506628274631000502415765284811] {Sqrt(2 * Pi)}
TwoPi [= 6.283185307179586476925286766559] {2 * Pi}
ThreePi [= 9.4247779607693797153879301498385] {3 * Pi}
Ln2 [= 0.69314718055994530941723212145818] {Ln(2)}
Ln10 [= 2.3025850929940456840179914546844] {Ln(10)}
LnPi [= 1.1447298858494001741434273513531] {Ln(Pi)}
Log2 [= 0.30102999566398119521373889472449] {LogBase10(2)}
Log3 [= 0.47712125471966243729502790325512] {LogBase10(3)}
LogPi [= 0.4971498726941338543512682882909] {LogBase10(Pi)}
LogNConst [= 0.43429448190325182765112891891661] {LogBase10(NConst)}
NConst [= 2.7182818284590452353602874713527] {Natural constant; exp(1)}
hLn2Pi [= 0.91893853320467274178032973640562] {Ln(2*Pi)/2}
inv2Pi [= 0.159154943091895] {0.5 / Pi}
TwoToPower63 [= 9223372036854775808.0] {2^{63}}
GoldenMean [= 1.618033988749894848204586834365638] {GoldenMean}
EulerMascheroni [= 0.5772156649015328606065120900824] {Euler GAMMA}
Constants:{Certain physical constants expressed in SI units}
Amu [= 1.6606E27] {Atomic mass unit constant (kg)}
Avog [= 6.0225E23] {Avogadro constant (mol^{1})}
Boltz [= 1.3805E23] {Boltzmann constant (J K^{1})}
ECharge [= 1.602189E19] {Electron charge (C)}
EMass [= 9.11E31] {Electron mass (kg)}
EVolt [= 1.602E14] {Electron volt (J)}
Farad [= 96500] {Faraday constant (C mol^{1})}
Gas [= 8.314] {Gas constant (J mol^{1} K^{1})}
Neutron [= 1.6748E27] {Neutron mass (kg)}
Planck [= 6.626E34] {Planck constant (Js)}
Proton [= 1.6725E27] {Proton mass (kg)}
Light [= 2.9979E8] {Speed of light (m s^{1})}
Gravity [= 9.80665] {Gravitational acceleration (m s^{2})}
Pressure [= 101325] {Normal atmospheric pressure (N m^{2})}
Stefan [= 5.67032E8] {StefanBoltzmann constant (W m^{2} K^{4})}
Bohr [= 5.2917706E11] {Bohr radius (m)}
Note: Function and constant names are not casesensitive. For example, Exp is the same as EXP or exp. The variable, which is the letter "x", is also not casesensitive.
Note: Text after proper mathematical expression, will be ignored by the compiler. You can use this feature to comment your equation set.
Note: In particular, you cannot use ^ for exponentiation, you must use the Power function instead.
Note: All the algebraic, trigonometric, hyperbolic and transcendental routines map directly to Intel 80387 FPU floating point machine instructions.
Note: DesktopCalc handles resulting floatingpoint values between 2.225E308 (2^{1022}) and 1.797E+308 (2^{1024}).
Note: As operands you can use numeric constants in any form (2, 2.0, 2e5, 2e3) with decimal delimiter "period" or "comma", depending on your computer system configuration.
2. Example of formula: sin(tan(cos(43.243)/ln(9.765))/(tan(34.3)*logbaseN(2;3)))*(x  1.87e3)
Thus! If your computer system configuration uses "comma" as decimal delimiter/separator, 9.765 in the above example must be 9,765
Example of formula: sin(tan(cos(43,243)/ln(9,765))/(tan(34,3)*logbaseN(2;3)))*(x  1,87e3)
3. Editbox "X value": Assign value to variable "x".
4. Click the "Compute" button to perform calculation.
Payment for DesktopCalc (price: US$15 dollars per license)
 via PayPal
Click the button below to pay
After payment, you are redirected automatically to a secured webpage that contains the activation code to unclock DesktopCalc application. Thank you for your purchase!
The software presented on these pages are for SavetheChildren charity.
Copyright © 2016 Larry Nylund Institute of Mathematics and Statistics Helsinki, Finland All Rights Reserved
 
