Dark Valley Software – by Dark Valley Software

Key Features

SIMPLICITY

vKalc works entirely with written text. Write text calculations as you would handwrite calculations

auto-formatting

Create clear and concise calculation documents with ease, using powerful auto-formatting features.

adaptability

Full support for dimensioned units, use SI and US units interchangeably. Enhance your calculation with functions and conditional statements.

error reporting

Errors are highlighted immediately and accurately.

DETAILED FEATURES:

supports creation, and use of variables.
supports common mathematical constants.
supports SI and US units of measurement.
supports sci-notation.
supports rebar-notation.
supports Greek alphabet.
supports common aggregate functions.
supports common mathematical functions.
supports conditional statements.
solve documents in full, or in part.
auto-format document text.
highlight variables, constants, units etc.
accurate calculation error handling.
supports common text formatting options.
supports common page formatting options.
supports page headers and footers.
supports paged layout and non-paged layout.
import text files and image files.
drag and drop text and images.
export documents to .pdf, .txt, and .html.
keyboard shortcuts for all special fonts.

APPLICATIONS:

use as a central tool in your engineering work.
use as a supplementary tool in your work.
use as an alternative to spreadsheets.
use as a multi-functional text editor.
use for design presentations.
use for educational purposes.

SPECIFICATIONS:

Operating System: Windows 10/11
Language: English

vKalc in Action

Some screenshots showing vKalc in action.
Visit Documentation page for detailed calculation examples.
(some screenshots may be from an earlier software version)

Reinforced Concrete Beam Design

A reinforced concrete beam design calculation with the reinforcement quantity highlighted, and with the ‘Current Variables’ window open to the right of the screen.

Electrical Circuit Calculation

A simple electrical circuit calculation with an image of the circuit shown at the top of the page, and with the ‘Current Variables’ window open to the right of the screen.

Chemistry Calculation

A simple chemistry calculation, along with a short list of chemical equations (for notation purposes only).

Physics Calculations

Two simple physics calculations

Document Creation

All vKalc documentation was created with the editor.

Information Windows

A view of the various information windows available.

vKalc Pricing

Purchasing a license provides access to vKalc for one year.
A first-time license purchase costs £40 (plus local taxes) for the first year of access.
A license renewal can then be purchased at any time and costs £20 (plus local taxes) for another year of access.

same price for all users

Dark Valley Software does not make any distinction between commercial and non-commercial users. All users have access to the software at the same price point.

No hidden costs

Dark Valley Software provide a simple and transparent pricing structure, there are no hidden costs, and software updates are provided to customers at no additional charge.

Ordering

Please read through the following section
and the License Agreement
before placing an order.

Order Today

step one

Contact us with your request, providing your full name, address, and email address.

step two

Dark Valley Software may contact you in order to clarify your details/requirements, prior to sending you an invoice complete with your order details, along with a payment link.

step three

Once payment has been received, Dark Valley Software will provide you with the necessary download links, along with installation instructions.

step four

Download and install the software.

Please note, at this time we can only accept orders from UK, EU, and US based customers.

Renewing

License can be renewed at any time.
Renewing helps to support the continued development of the software.

Renew Today

renewing prior to a license term expiry

Renewing prior to your current license term expiry date will add one year to your current license term expiry date, and ensure uninterrupted access to the software.

renewing after a license term has expired

Renewing after a license term has expired will provide you with another year of access to the software, regardless of how much time has passed since your last license term expired.

vKalc