Description

Let's look at some simple questions:
Question 1:
James can make $200 per day, what would be his annual income ( He works 5 days a week, 48 weeks per year) ?
This is easy, just enter an expression as this in Xmart Calculator: 200 x 5 x 48
Question 2:
How many times of tapping a button to calculate his annual income?
8 times on a normal calculator, 7 times on Xmart Calculator (you don't need to tap the '=' button).
Question 3:
What if his day rate is $320, $400, $500...?
Well, very similar:
320 x 5 x 48;
400 x 5 x 48;
500 x 5 x 48...
What's the problem? With a normal calculator, we have to enter the same buttons 'x 5 x 48' very time when the only value changes is just the day rate.
Is there any way to just enter the day rate and the result will update automatically?
With Xmart Calculator, YES! You can define a Algebra function like this:

"IncomeByDay(X) = X x 5 x 48"
Then you can just select the function and enter the value for 'X' and the result will update straight away!
To get James annual income, you just need to tap buttons 4 times.
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End of questions
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Xmart Calculator is appreciated as an intelligent, programmable and expandable calculator based on text expression.
In addition to most of the common and scientific functions, users can also define personal functions.
All calculations are step-by-step traceable.
**Quick start:
* There is no '=' button in this calculator app, it will calculate and show result as soon as the expression is updated.
* Swipe up/down to hide/show the history records.
* Swipe left and right to hide/show the scientific/math functions.
**Main feature:
* Custom functions: user can define any algebra functions with up to 9 parameters.
* Use a custom function in the main expression or play with it separately.
* Calculate and show result instantly when the input is updated.
* Support most scientific math functions.
* Save calculation to history
* Recall history item or expression
* Name/label a history item meaningfully
* Record and show step by step details of the calculation
* Share history with friends
* Configure the colours and fonts
* Super fast mortgage calculator is included
* Turn ON/OFF the button sounds,
* Select button sound from 6 different options
* Support Apple Watch & iMessage

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User Rating

4 out of 5

16 ratings in United Kingdom

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Xmart Calculator Pro Reviews

Glitchy

This Calc is good. But has glitches that don’t get fixed. If you do a calculation and use the equals button to use the answer in another calculation it says illegal character found. It never used to do this. Any updates should be tested first before release.

Why only landscape on iPad??!!!

It’s ridiculous, why can’t you dictators give us a choice to use landscape or portrait on iPad??!!! It’s so annoying and inconvenient, to have this on landscape all the time!! Please amend this oversight.

Good free app but!

Why does preferences open every time you tap the Equals button?

Great app

Easy to use, lots of functions but looks very neat and simple. recommend!

The best calculator app for iPhone and iPad

This is a fantastic, feature-full calculator. I continually look for better calculators but just can’t find them.* This is the absolute best. *The reason I’m still looking is that I don’t particularly like the Apple Watch Xmart calculator.

Inaccurate Results

Sorry but you just shoot yourself in the foot with your last reply. You say it is wrong to say 200x25%=50 as that would give 200x50=10000 Yet if we apply in your app 200x25% we get the correct answer of 50. Therefore whilst your in app answer of 200x25%=50 falls in line with other apps, your 200-25%=199.75 does not. Other apps show 200-25%=150 As such I am confused why you use one expression for 'x' but a different one for '-'.

Great!

Simple, pretty, just works! GET IT!!

Amazing calculator

It is very convenient to insert several parameters to get the results. This calculator would help you lead easier life.

Useful and beautiful!

Love the way to show and rename history and custom font sizes!

The best calc！

Getting better and better!

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App Info

Last updated

3 weeks ago

Xmart Calculator Pro

Programmable calculator