小牛计算器

Calf Calculator is an expression-based programmable calculator. Users can define common functions to simplify daily calculations.

Let's first look at some simple math problems:

Question 1:

Xiaoming (why is it always Xiaoming again?) can earn 500 yuan a day. How much is his annual income? (Assume he works 5 days a week and 48 weeks a year)

Answer:

This is very simple. Just enter such a formula in Calf Calculator:

500 x 5 x 48

Question 2:

How many times do you need to press the buttons on a general calculator to calculate such a formula?

Answer:

Generally 8 times, and Calf Calculator is 7 times because you don't need to press the '=' sign


Question 3:

If Xiaoming's daily salary is 600, 700, 800... how to calculate the annual income?

Answer:

600 x 5 x 48;

700 x 5 x 48;

800 x 5 x 48;...


Do you see the problem? Each time you calculate, you have to repeat entering 'x 5 x 48', and only the first few digits change.

Is there a way to just enter the daily salary and the annual income will come out automatically?

In Calf Calculator, you can define such a function:

'IncomeByDay(X) = X x 5 x 48'

Then select this function and just enter 'X' to automatically calculate the annual income!

** Basic Usage

* There is no '=' sign. If you need to save the calculation result, click 'Save'; if not, click 'C'.

* Slide up and down to show/hide the calculator record.

* Slide left and right to hide/show the scientific functions.

** Main Functions

* Function definition: Support up to 9 parameters.

* Get results while inputting, no need to press the '=' sign.

* Mortgage calculation: Quickly calculate the monthly payment and total loan amount.

* Keep all calculation steps: Kill accounting and auditing at the same time!

* The results in the calculator can be named arbitrarily.

* Share the calculation results via text message, email, Facebook, Twitter, etc.

* Callback the results in any calculation history record.

* Calculate all input expressions.

* Support all major scientific functions.

* All functions can be nested infinitely.

** Other Highlights:

* Support Apple Watch

* Support 3D Touch preview and quick launch

* Search for calculation records via Spotlight

* The calculator settings support radians and degrees;

* Keep up to 15 decimal places;