Press spacebar to enter the information needed. The valid operations are: + - / * sqrt (square root) abs sin asin cos acos tan atan F to C (Fahrenheit to Celsius) C to F (Celsius to Fahrenheit) 10^ e^ average (5 numbers)
Thumbnail font is from cooltext.com. http://scratch.mit.edu/projects/16755013/ is calculator 1. (not as advanced)