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Marizza181 [45]
2 years ago
7

It is 10PM and you are inside in the middle of a large building. Your cell phone is dead so you cannot use wifi or cell signals

to find your location. Unfortunately, your GPS unit cannot find your location either! This is because:
your GPS unit cannot send signals to the satellite when it cannot reach it by line of sight.

it is nighttime and the GPS does not work without sunlight.

GPS relies on the cellular network to send and receive signals.

your GPS unit cannot receive satellite signals when you are indoors away from windows.
Computers and Technology
1 answer:
kupik [55]2 years ago
4 0

<em>The answer is: your GPS unit cannot send signals to the satellite when it cannot reach it by line of sight. </em>

<em> </em>

<em>GPS signals are based on frequencies that can be blocked by solid objects (like walls and roofs). A GPS device is using a series of satellites to detect and see where it is physically located. These frequencies are sent from these plates (satellites) and we cannot expect it to go through all kinds of barriers. When you use a GPS inside a building, a wide variety of physical barriers and potential interference sources make it difficult for the device to detect your location accurately. </em>

<em> </em>

<em />

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Write the half function. A function call and the functionprototype
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Answer:

C code for half()

#include<stdio.h>

void half(float *pv);

int main()

{

float value=5.0;  //value is initialized  

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}

void half(float *pv) //In function definition pointer pv will hold the address of variable passed.

{

*pv=*pv/2;  //pointer value is accessed through * operator.

}

  • This method is called call-by-reference method.
  • Here when we call a function, we pass the address of the variable instead of passing the value of the variable.
  • The address of “value” is passed from the “half” function within main(), then in called “half” function we store the address in float pointer ‘pv.’ Now inside the half(),  we can manipulate the value pointed by pointer ‘pv’. That will reflect in the main().
  • Inside half() we write *pv=*pv/2, which means the value of variable pointed by ‘pv’ will be the half of its value, so after returning from half function value of variable “value” inside main will be 2.5.

Output:

Output is given as image.

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Max: he MAX function will count numbers but ignore empty cells, text, the logical values TRUE and FALSE, and text values. In financial analysis, MAX can be useful in calculating the highest score, the fastest time, the highest expense or revenue amount, etc.

Min: will return the minimum value in a given list of arguments. From a given set of numeric values, it will return the smallest value. Unlike the MINA function, the MIN function ignores numbers, text, and logical values TRUE and FALSE and text values. In financial modeling.

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