• Graphing & Data Plots
• Scientific & Statistical Features
• Ideal for Students
• Fully Featured Package
• Additional Graphing Features
• Financial Calculations
Requirements: MS Windows 10 to XP (SP3). Screen 1024x768 or above.
See the Version History for recent changes.
Digitally Signed for Security
DreamCalc is free for non-commercial use. Premium features (see below) are available as an upgrade option.
Both the Graphing and Professional editions offer the same set of free features.
The software does not contain any adware or third-party "extras" of any sort, and can be uninstalled easily and fully.
See license: EULA.
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Algebraic & RPN inputs | ✔ | ✔ | ✔ |
Function graphing & list data plots | ✔ | ✔ | |
Realistic user interface & skins | ✔ | ✔ | ✔ |
Polynomial solver | ✔ | ✔ | |
Keyboard input | ✔ | ✔ | ✔ |
Complex number input | ✔ | ✔ | |
Paper roll | ✔ | ✔ | ✔ |
Run from System Tray (optional) | ✔ | ✔ | ✔ |
Engineering mode & engineering key | ✔ | ✔ | ✔ |
Date input & calendar functions | ✔ | ✔ | ✔ |
International number formats | ✔ | ✔ | ✔ |
Fixed digit & scientific notation | ✔ | ✔ | ✔ |
Natural fraction key | ✔ | ✔ | ✔ |
Multiple memory registers | ✔ | ✔ | ✔ |
Degrees, minutes & seconds (DMS) | ✔ | ✔ | ✔ |
Unit conversions and Constants | ✔ | ✔ | ✔ |
On-Screen display of input expression | ✔ | ✔ | ✔ |
Help & keyboard hints | ✔ | ✔ | ✔ |
Main window roll-up feature | ✔ | ✔ | ✔ |
Windows clipboard support | ✔ | ✔ | ✔ |
Full backspace & undo | ✔ | ✔ | ✔ |
Financial keypad area | ✔ | ||
Comprehensive user guide1 | ✔ | ✔ | ✔ |
Hundreds of functions2 | ✔ | ✔ | ✔ |
1. See User Guide. 2. See Index of Functions.
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Graph any function in seconds! | ✔ | ✔ | |
Two functions plots shown simultaneously | ✔ | ✔ | |
Realtime plot cursor information | ✔ | ✔ | |
Scatter & line plots for X-Y data |
✔ | ✔ | |
Show line of Regression Fit instantly | ✔ | ✔ | |
Numerical calculus | ✔ | ✔ | |
Find points of intersection | ✔ | ✔ | |
Histograms, bar charts & frequency polygons | ✔ | ✔ | |
Normal Q-Q plots | ✔ | ||
Logarithmic axes | ✔ | ✔ | |
Polar plots | ✔ | ✔ | |
Graph zooming | ✔ | ✔ | |
Cashflow charts | ✔ | ||
Export charts to other applications | ✔ | ✔ |
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Spreadsheet style data input | ✔ | ✔ | |
Mean, standard & average deviations, min, max, range, mode, median, standard error & nomalized variate etc. | ✔ | ✔ | |
Skew & kurtosis functions | ✔ | ✔ | |
Generate histograms, frequency polygons & bar charts | ✔ | ✔ | |
Normal quantile-quantile plots | ✔ | ||
Gaussian probability distributions & standard z-score | ✔ | ✔ | |
Regression modes: linear, logarithmic, power, inverse, exponential, quadratic & cubic regression | ✔ | ✔ | |
Logistic regression | ✔ | ||
Calculate coefficients, correlation, determination, COVAR, RMSE etc. | ✔ | ✔ | |
Suggest optimal regression for X-Y data | ✔ | ✔ | |
Maximum list size | 2000 | 5000 | |
Export data to other applications | ✔ | ✔ |
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Percentage % key | ✔ | ✔ | ✔ |
Effective annual rates for Europe & Canada | ✔ | ||
Loan amortization | ✔ | ||
Compound interest calculations (TVM) | ✔ | ||
Internal rate of return (IRR) | ✔ | ||
Modified internal rate of return (MIRR) | ✔ | ||
Net present value calculations (NPV) | ✔ | ||
Logistic regression | ✔ | ||
Bond price (PRICE) & yield to maturity (YTM) | ✔ | ||
Return on investment (ROI) | ✔ | ||
SL, SOYD & DB depreciation | ✔ | ||
Simple interest | ✔ | ||
Cashflow charts | ✔ | ||
Cumulative cashflow charts | ✔ | ||
Spreadsheet style cashflow input | ✔ | ||
Simple profit functions (COST, SELL, MAR) | ✔ | ✔ | ✔ |
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Arithmetic for 32 & 64 bit integers | ✔ | ✔ | ✔ |
Floating point base-N arithmetic | ✔ | ✔ | ✔ |
Any radix from 2 to 16 | ✔ | ✔ | ✔ |
Logic functions: OR, XOR, AND, XNOR, REM etc | ✔ | ✔ | ✔ |
Big endian to little endian conversion | ✔ | ✔ | ✔ |
Conversions to KB (kilobytes), MB, GB values etc | ✔ | ✔ | ✔ |
Byte grouping & lead zero padding | ✔ | ✔ | ✔ |
Free* Unregistered |
DCG Graphing |
DCP Professional |
|
Commercial use | ✔ | ✔ | |
Tiered volume discounts | ✔ | ✔ | |
Price ** | $24.99 USD | $29.99 USD | |
Licensing | Free for Non-commercial | Per User | Per User |
Buy Now | Buy Now |
* Both the Graphing and Professional editions offer the same set of free features.
** Prices shown in USD will be converted to your own currency during the order. Prices exclude EU VAT, which will be shown in the order page, if applicable.
Why not make DreamCalc a professional part of your toolset right now?