Payments, downloads, licenses

 

Program Price USD Payment Download Retrieve license
ComplexNumberCalculatorPrecision45 60.00
download retrieve license
ComplexCalculatorPrecision36 45.00
download retrieve license
ComplexCalculatorPrecision27 30.00
download retrieve license
ComplexCalculatorPrecision18 20.00
download retrieve license
QuadratureCalculatorPrecision90 70.00
download retrieve license
ScientificCalculatorPrecision90 40.00
download retrieve license
QuadratureCalculatorPrecision81 65.00
download retrieve license
ScientificCalculatorPrecision81 35.00
download retrieve license
QuadratureCalculatorPrecision72 60.00
download retrieve license
ScientificCalculatorPrecision72 30.00
download retrieve license
ScientificCalculatorPrecision63 25.00
download retrieve license
ScientificCalculatorPrecision54 20.00
download retrieve license
CompactScientificCalculator54 20.00
download retrieve license
TaylorCalculatorReal45 67.00
download retrieve license
DerivativeCalculatorReal45 57.00
download retrieve license
CollegeScientificCalculator45 17.00
download retrieve license
CompactScientificCalculator45 17.00
download retrieve license
TaylorCalculatorReal36 64.00
download retrieve license
DerivativeCalculatorReal36 54.00
download retrieve license
CollegeScientificCalculator36 14.00
download retrieve license
CompactScientificCalculator36 14.00
download retrieve license
TaylorCalculatorReal27 61.00
download retrieve license
DerivativeCalculatorReal27 51.00
download retrieve license
CollegeScientificCalculator27 11.00
download retrieve license
CompactScientificCalculator27 11.00
download retrieve license
ScientificCalculatorDecimal 10.00
download retrieve license
TripleIntegralCalculatorLevel2 125.00
download retrieve license
DoubleIntegralCalculatorLevel2 65.00
download retrieve license
IntegralCalculatorLevel2 55.00
download retrieve license
TaylorCalculatorLevel2 55.00
download retrieve license
DerivativeCalculatorLevel2 45.00
download retrieve license
QuadratureCalculatorLevel2 35.00
download retrieve license
MathCenterLevel2 40.00
download retrieve license
IntegralCalculatorLevel1 40.00
download retrieve license
TaylorCalculatorLevel1 40.00
download retrieve license
DerivativeCalculatorLevel1 30.00
download retrieve license
QuadratureCalculatorLevel1 20.00
download retrieve license
MathCenterLevel1 20.00
download retrieve license
HouseholdCalculator 5.00
download retrieve license

 

Notes:

1. Immediately after payment a Serial Number is sent to the same email that you used for payment (but email delivery can take up to a few hours). Select and copy the Serial Number from the letter and paste it into the activation window. To select, drag cursor along the text. To copy, press Control and C at once, or choose Copy from right-click menu. To paste, press Control and V at once, or choose Paste from right-click menu.

2. Pay Now Button takes you to PayPal website. PayPal accepts all credit cards. There is also possibility to pay from your bank account by eCheck (similar to paper check).

3. When you start the software and start calculation, there is is a noticeable delay which seems as slow calculation. This is due to protection. The program takes some time for encryption-decryption . Further calculations are done at usual speed.

4. EULA

End-User License Agreement for Tvalx Software

1. You may install a copy of the Software on your personal computers. For each paid license you are given five available hardware profiles. One profile is considered as main and four as alternative. Each hardware profile is based on processor. You may install Software either on five computers at once, or install on one computer and keep four available profiles for future use, or in any other combination. Once activated a profiles becomes a used profile and number of available profiles decreases. A used profile cannot be replaced. For example, if a processor on your computer breaks down, you will have one main profile and three alternative profiles. If you have multiple operating systems on your computer, then you may install and activate the Software on each operating system under one profile. You may install and activate the Software on any virtual machine, but it can take an available profile, since virtual machines usually have different information for processor. If you have paid for a license, you may install and activate any past and future version of the Software. A paid license has no time limit. Activation of the Software requires internet connection. Once activated the Software does not require internet connection.

2. You may not reverse engineer, decompile, disassemble or otherwise attempt to discover the source code of the Software.

3. You may not alter or modify the Software or create a new installer for the Software.

 

5. The easiest way to install a new version is : uninstall previous version, install new version, activate program using your serial number.

6. If you install the Software into Windows Vista or Windows 7, use following procedure (for Internet Explorer, for other browsers similar). Click download link and choose Save file. When download has finished, choose Open folder. Right-click downloaded file. From right-click menu choose Run as administrator.

7. You may install the Software in corporative environment (business, govermental or academic) for evaluation only. If you want to activate the Software in corporative environment then write to sales@tvalx.com  about your proposal : business description, network description (Citrix, VMware, Remote Desktop, etc.), how many "seats", etc. Small businesses with no "thin client" technology may activate the Software under the regular End-User License Agreement.

© 2008 Tvalx