Final answer:
A script calculates BMI using weight and height inputted by the user and displays appropriate error or warning messages if values entered are nonpositive or unreasonable. The script follows the general formula for BMI calculation and considers its limitations as a health measure.
Step-by-step explanation:
Script to Calculate Body Mass Index (BMI)To calculate BMI, the following script requests the user to input weight and height from the keyboard. The formula used is BMI = [weight (lb) × 703] ÷ height(in)². If the entered weight or height is nonpositive, an error message is displayed. If the values entered are not within reasonable limits, a warning message alerts the user. Reasonable limits could refer to the standard BMI categories that define underweight (<18.5), normal weight (18.5-24.9), overweight (25-29.9), and obese (≥30). This script considers the common BMI limitations such as not accounting for muscle mass versus fat mass, hence it is simply a general guide and not a definitive measure of health or obesity.
Error and warning checks in the script are crucial to ensure that the BMI is computed accurately and to inform the user of any potential inaccuracies in the entered data. It is important to keep in mind that factors like age, sex, ethnicity, and muscle composition can affect the BMI-associated health risks, therefore professional medical advice is always recommended for an accurate health assessment.To calculate BMI, you need to multiply your weight in pounds by 703 and then divide the product by your height in inches squared. If the entered weight or height is negative or zero, display an error message stating 'Negative value(s), not acceptable.' If the entered values are not reasonable, display a warning message saying 'Caution, value(s) may be invalid.'