Respuesta :
Answer:
The program to this question as follows:
Program:
targetValue = 0.3333 #defining variable targetValue and assign value
sensorReading = 0.0 #defining variable sensorReading and assign value
sensorReading = 1.0/3.0 #calculate value in sensorReading variable
Val=sensorReading - targetValue
#calculate the difference and store in Val variable
if (Val < 0.0001): #use of if block to check condition
print ("Equal") #print value
else: #else block
print ("Not equal") #print value
Output:
Equal
Explanation:
In the above Python program code, there are two variables "targetValue and sensorReading" is defined, in which targetValue store a value, that is "0.3333", and sensorReading holds a value, that is "0.0".
- In the next step, the "Val" variable is defined, that calculate the difference between both variable, that conditional statement is used.
- In if block, if the value is less then "0.0001", it will print value "Equal", otherwise, it will go to the else block, that will print "Not equal".
Full Question
Write an expression that will cause the following code to print "Equal" if the value of sensorReading is "close enough" to targetValue. Otherwise, print "Not equal". Ex: If targetValue is 0.3333 and sensorReading is (1.0/3.0), output is: Equal
#include <iostream>
#include <cmath>
using namespace std;
int main() {
double targetValue;
double sensorReading;
cin >> targetValue;
cin >> sensorReading;
if (/* Your solution goes here */) {
cout << "Equal" << endl;
} else {
cout << "Not equal" << endl;
} return 0;
}
Answer:
if (abs(targetValue - sensorReading) <= 0.0001)
Explanation:
Replace
if (/* Your solution goes here */) {
With
if (abs(targetValue - sensorReading) <= 0.0001)
Two values are considered to be close enough if the difference between the values is 0.0001
Splitting the codes into bits;
abs
targetValue - sensorReading
<=
0.0001
The keyword abs is to return the absolute value of the expression in bracket.
This is needed because the expression in the bracket is expected to return a positive value.
To do this the absolute keyword is required.
targetValue - sensorReading returns the difference between the variables
<= compares if the difference falls within range that should be considered to be close enough
0.0001 is the expected range
