The Finest Hand-Selected Downloads
Individually reviewed & tested
Store News

OpalCalc 1.87

A scientific calculator meets a spreadsheet - and this is the result

Rating:
Operating Systems:
Windows 7 (32 bit), Windows 7 (64 bit), Windows 8, Windows Vista, Windows XP
License:
Function Limited Demo
Developer:
Daniel White
Software Cost:
Free
Category
System & Desktop Tools
Date Updated:
18 June 2017
Downloads To Date:
1355
Languages:
English
Download Size:
395.00 KB

OpalCalc is an interesting combination of a scientific calculator and a spreadsheet, which comes packed with features yet remains very easy to use.

At its simplest, you can just start typing in equations on the left-hand side of the window - (10*22)/8, SIN(0.5)*Pi, 2*5/4+(6/7), whatever it might be - while the answers will appear on the right.

And if you know what you're doing then you'll be pleased to see that OpalCalc has a lot of functions you can use here, covering trigonometry, statistics and more (click the Pi icon to the right of the toolbar to view the full list).

The benefits here aren't just for those already comfortable with math, though. OpalCalc's "as" keyword, for instance, is ideal when you need to convert a mixed set of units into a single measurement system, like "4inches + 75cm + 2metres as cm" (which is 285.16cm, if you were wondering).

Place an @ sign at the start of a line and the program can also carry out date and time-related maths: @11:00 to 13:51 as minutes, @today - 7 days, @17th August 2012 + 35 days + 8 hours, and so on.

And even if you're math-phobic, you'll find OpalCalc provides useful features without causing you any pain at all. So for example enter the following, and as soon as you type "total" the sum of your expenses will appear on the right.

$400 for hotel
$50 for my food costs + $75 for Tim
$125 for car hire
$50 to borrow the laptop
total

And you can extend things further by defining your own variables, functions and more.

There is one significant restriction with the demo version, though: you can't enter more than 5 lines, which could be a major issue. Still, upgrading need not be expensive as the author is allowing users to pay what they think it's worth. Click "Upgrade OpalCalc" from the main menu to find out more.

What's new? (Changelog):
It's now possible to get the sums to align right (instead of the usual left). Simply press Ctrl+R to toggle between them.

Added cotan functions
Fixed interpretation of 'e' in certain hex numbers such as x`a1e0
E notation (e.g: 5e3 = 5000) can now use the decimal point (e.g: 5e3.5 = 15,811.388)
Added padding symbol for custom notation. One useful technique is to make the padding symbol a space. Combined with "Pad/chop major digits" ticked, a high enough value for "Pad left", the "Thousands separator" unticked, and a fixed width font produces output numbers which are aligned by the decimal point.

Verdict:

An interesting scientific calculator which thinks it's a spreadsheet, yet is easy (and useful) enough for even the most mathematically-challenged to enjoy.

Your Comments & Opinion

Related Downloads Other Downloads From This Category

A cross-platform office suite with generous licensing options and features to rival Microsoft Office

Trial Software

Use Office on your iPad with this cloud-based productivity tool

Freeware

Graphing calculator that students can use in science, mathematics, and many other subjects

Freeware
44,734,857
Downloads
Secure & Tested Software
6,478
Reviews
Instant Download 24/7
314,729
Members
10+ Years of Service