If you want to work something complicated out, usually with number, you take out your calculator, or fire up a spreadsheet. You then enter all your numbers and hope you don’t make a mistake, or even worst you end up entering all the required numbers, get distracted and then have to start again. The app I have found to save myself a lot of time and effort is Soulver. It is an interactive way of solving problems. Instead of just typing numbers you can write your problems down, where the app will take these values and interpret them. No longer do you have to work with equations, you can work with words.
Using Words To Solve Equations
Normally if you want to find a percentage, a divisor of something more complicated you have to remember the correct formula, or method of completing the equation. This is fine if you do this every day, or have a good knowledge in maths, but it can become quite complicated if you are not sure if you are doing it correct. To combat this Soulver takes your equation in a more human way and gives you the answer.
For example if you want to increase a value by 10% you would normally have to calculate in your calculator value * 1.10. With Soulver you can write value + 10%, or the same equation in a variety of different ways.
For example if we were to do something more complex, such as calculate currency conversion or stock prices we can do that with Soulver. Once they ad loaded into the app they can be used. For example we can convert £2000 into $ and then work out how many shares we can buy. We can then apply more formulas and convert it back to pounds.
You will notice on the image above there is numbers outlined in blue, on line two and four. These are tokens which you pull from the answer bar on the right. This means if you update the initial line, or lines above it, the value itself is updated. This means if you want to change the initial variable, it will automatically update the rest of the calculation. You can also have tokens that reference 2, 4 or more lines above it. This works in a similar method.
Along with simple calculations the app can also interpret variables. This is a simple way to have the same value throughout many lines. If you change the variable at the beginning of the calculation, it will update the computation.
The app is very easy to use. The built in example which you first launch has many examples. The reference guide has plenty of handy hints to help you work out how to write your equation and solve your problem.
I love this app. Through out may day I always have to solve little equations or find answers to little problems. Soulver helps you do this. It is a more linguistic way of solving problems, which allows you to visually display how you worked through your calculation. Its a lot easier that just numbers on a screen.
You can get the app off the app store. Its relatively cheap and should pay itself back in days, since you will always find yourself using it.