1. initget: This function initializes keywords or input filters. (initget [flags] [keywords]) Flags: This is control flag for next input function. Ex. (initget 7) (getint “\nOnly Integer value ”) 2. getreal : This function ask for user input of real number and returns real number (getreal [prompt]) Ex. (getreal “Width:”) Width:» 2.5 2.5 3.getstring: This function prompts user to input text string. (getstring [flag] [prompt]) Ex. (getstring T “You can enter words with spaces”) (getstring “one Word only”) 4. getpoint: This function asks you to enter a point . (getpoint [point] [prompt]) Ex. (getpoint) Now click in GA or input point to get point : lets say 0,0 It will return as (0.0 0.0 0.0) (getpoint “Click in GA”) Click in GA» (Click in GA)…