Magic Number – A Better Calculator
By Seed Ltd.
Open the Mac App Store to buy and download apps.
• On sale for a limited time. •
(Regular price: $9.99 USD.)
Magic Number is an intelligent calculator you will enjoy.
• A better view of your calculation.
• A more intuitive way to enter and edit.
• The ease for everyday use.
• The power to tackle advanced problems.
Seeing is everything:
• Your calculation is beautifully and mathematically formatted.
Everything is easier to understand.
• You see the whole expression. You are less likely to make mistakes.
• To see it bigger, just resize the window.
• You also have extensive viewing options.
Enter naturally and quickly:
• Enter the way you see it.
For example: 2 sin 9 + 3
On a typical calculator, you enter: 2 x 9 sin + 3
On others, you enter: 2 * sin(9) + 3
On Magic Number: 2 sin 9 + 3
• Lots of easy and convenient shortcuts.
• Yes, you can press X to multiply.
Edit without thinking:
• It’s faster and easier than any editor!
• Made a mistake? Just click and type over it.
• You can navigate with just the left or right arrow keys.
• You can work with any type of numbers:
fractions, percentages, and even complex numbers.
• Magic Number can solve linear algebraic equations.
Enter: 100 – ? = 55. Result: ? = 45
Enter: 240 – ? % = 192. Result: ? = 20
• With ‘History’, you can reuse previous calculations.
• Use ‘Data’ to add a list of numbers quickly.
Lots of useful features:
• Over 100 functions
• 25 digits accuracy
• 10 memories (variables)
• 4 customizable tax rates
• Over 50 scientific constants
• Statistics (via ‘Data’)
• Linear regression (via ‘2D-data’)
• Matrix (Inverse, determinant, linear equations via Gauss-Jordan Elimination)
What's New in Version 2.1
Lots of fine and detailed improvements. For more info and screenshots, go to:
New features include:
• A new and easy way to do compound interest related calculations.
(See: Help > Percentages)
• For trigonometry fans, you get cosecant (csc), secant (sec), cotangent (cot).
• You get the hyperbolic counterparts too: csch, sech, coth.
• Adjacent function to calculate the other right-angled side of a triangle.
• K is not just for 1000. You can use it like a variable.
• Option to automatically insert closing bracket / parenthesis.
• Option to use tau, where τ = 2π, to make radians more intuitive.
• Fixed the issue with duplicate expressions in history.
• Planck Temperature now has the correct value.
• 0^-1 now returns as undefined instead of 0.
• Fixed a rare bug that the result is formatted as 0.
If you like Magic Number or this free update, let us know by rating it.
It only takes 2 clicks. Just go to the star menu.
Brilliant and Beautiful
Though a calculator application seems like it should be simple enough, the hundreds (or thousands) of offerings to date leave something to be desired - except this one. Magic Number is as close to an ideal calculator as one could hope for!
Only A Few Things Wrong
This is probably the best calculator that I have ever found in my life, but there are only a few things that it can’t do that I don’t like. The app uses the “?” button like a variable. For example, if you wanted to solve for x, and 2x=16, then you would type, “2*?=16”, and it would tell you that x=8. However, it can’t solve for the ? when you multiply ? times itself. For example, if you type, “?*?=16”, it says, “?=:(“. Seriously, it says that ? is equal to sad face. The other thing that this app can’t do is simplify square roots, and I’ve seen calculators that can do it. My friend has one, and I almost offered him $36 for it. For example, if I wanted to simplify the square root of 12, I would get 2, multiplied by the square root of 3, but Magic Number gives me 3.464101615137754587054893. I was going to give this app four stars, but I didn’t want to be the first person to give this app less than 5. By the way, the support team is really good. Thanks, Dennis Liu. :)