Math Expressions
We also can write math expressions.
The sequence of actions will work the same as in mathematics, where 2 + 2 * 2 = 6, because the multiplication is done before the addition.
main.php
123<?php echo 2 + 2 * 2; ?>
Let's look at a more complex example:
main.php
123<?php echo (12 + 6) * 2 - 10 / 5 + 2; ?>
First, in the expression (12 + 6) * 2 - 10 / 5 + 2, we perform the operations inside the parentheses. Adding 12 and 6 gives us 18. So, the expression now looks like 18 * 2 - 10 / 5 + 2.
Next, according to the rules of operator precedence, we handle multiplication and division from left to right. First, we calculate 18 * 2, which equals 36. Then, we compute 10 / 5, which equals 2. Thus, our expression transforms into 36 - 2 + 2.
Moving forward, we perform subtraction: 36 - 2, resulting in 34. Finally, we add 2 to 34, giving us the final result of 36.
Therefore, the expression (12 + 6) * 2 - 10 / 5 + 2 evaluates to 36.
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We also can write math expressions.
The sequence of actions will work the same as in mathematics, where 2 + 2 * 2 = 6, because the multiplication is done before the addition.
main.php
123<?php echo 2 + 2 * 2; ?>
Let's look at a more complex example:
main.php
123<?php echo (12 + 6) * 2 - 10 / 5 + 2; ?>
First, in the expression (12 + 6) * 2 - 10 / 5 + 2, we perform the operations inside the parentheses. Adding 12 and 6 gives us 18. So, the expression now looks like 18 * 2 - 10 / 5 + 2.
Next, according to the rules of operator precedence, we handle multiplication and division from left to right. First, we calculate 18 * 2, which equals 36. Then, we compute 10 / 5, which equals 2. Thus, our expression transforms into 36 - 2 + 2.
Moving forward, we perform subtraction: 36 - 2, resulting in 34. Finally, we add 2 to 34, giving us the final result of 36.
Therefore, the expression (12 + 6) * 2 - 10 / 5 + 2 evaluates to 36.
Grazie per i tuoi commenti!
