Page 267 - Computer Software Application TP - Volume 1

COMPUTER SOFTWARE APPLICATION - CITS

TASK 7: Common math functions

Basic Arithmetic Functions:
abs($number): Returns the absolute (positive) value of a number.
round($number, $precision = 0): Rounds a number to a specified number of decimal places.
ceil($number): Rounds a number up to the nearest integer.
floor($number): Rounds a number down to the nearest integer.
min($number1, $number2, ...): Returns the smallest value from a list of numbers.
max($number1, $number2, ...): Returns the largest value from a list of numbers.
pow($base, $exponent): Returns the base raised to the power of the exponent.
sqrt($number): Returns the square root of a number.
Trigonometric Functions:
sin($angle): Returns the sine of an angle in radians.
cos($angle): Returns the cosine of an angle in radians.
tan($angle): Returns the tangent of an angle in radians.
asin($number): Returns the arcsine of a number (in radians).
acos($number): Returns the arccosine of a number (in radians).
atan($number): Returns the arctangent of a number (in radians).

Logarithmic Functions:
log($number, $base = M_E): Returns the logarithm of a number to a specified base (default is natural
logarithm, base e).
exp($number): Returns the value of e raised to the power of a number.

Number Base Conversion Functions:
base_convert($number, $frombase, $tobase): Converts a number between arbitrary bases.
bindec($binary_string): Converts a binary string to a decimal number.

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CITS : IT & ITES - Computer Software Application - Exercise 53