GraphCalc fully supports any base from base 2 through base 36. Whether it's binary, decimal, or hexadecimal, GraphCalc will give you accurate fast results. The digits above 9, in bases higher than 10, are represented by the letters A-Z (must be upper case), allowing up to base 36.

GraphCalc starts out in base 10. All calculations are done as normal until you specify otherwise. The are two basic things you can do with bases. You can do arithmetic in another base, or you can convert a number between bases. To do either, use the base button. Either enter an equation in the form "1234 convbase 2" to convert 1,234 to binary, or set the base to binary and enter an equation like "1000000000 + 11010010".

There are some natural limitations to using bases other than 10. For example, it only makes sense to take the sin(45) in base 10, because the 45 is referring to degrees or radians not units. GraphCalc will only let you use basic arithmetic with other bases. The technical limitation is based on the confusion of alpha-numeric characters with operators when using bases higher than ten.

Also, graphing makes no sense in other bases. Consequently, when you switch to start graphing, GraphCalc automatically knows to use only base ten.