Scratch

Project Notes

Displaying numbers with string joins. This program has a single sprite called digit, which responds to messages print_number, and print_scientific. It uses two input variables, print_after_decimal and print_number, and one output variable, display_out. When print_number is broadcast, number in print_number is displayed as a string in display_out, with fixed point notation. This version can print up to 15 places to the right of the decimal point, controlled by print_after_decimal. When print_scientific is called, the number is displayed in "scientific" notation, with a power of 10 after the letter E (unless the exponent is 0, then the output is the same as print_decimal). After the call, print_number is 0. There is a simple test script on the stage: clicking on s broadcasts print_scientific, d broadcasts print_number, while space clears the display. The scripts are in a sprite to make them easier to move to another project, and to hide some local variables.