This topic describes the syntax, description, parameters, and return values of numeric functions. This topic also provides examples of these functions.

add

The following table describes the details about this function.
Item Description
Syntax add(n1, n2)
Description Calculates the sum of two addends.
Parameter
  • n1: the addend.
  • n2: the other addend.
Return value Returns the sum of n1 + n2.
Example 
n1 = add(10, 20)
n2 = sub(10, 20)
n3 = mul(10, 20)
n4 = div(10, 20)
n5 = mod(35, 20)
say(concat('n1=', n1))
say(concat('n2=', n2))
say(concat('n3=', n3))
say(concat('n4=', n4))
say(concat('n5=', n5))
Output:

n1=30

n2=-10

n3=200

n4=0.5

n5=15

sub

The following table describes the details about this function.
Item Description
Syntax sub(n1, n2)
Description Calculates the difference between two numbers.
Parameter
  • n1: the (minuend) number to be subtracted from.
  • n2: the (subtrahend) number to be subtracted.
Return value Returns the difference of n1 - n2.
Example 
n1 = add(10, 20)
n2 = sub(10, 20)
n3 = mul(10, 20)
n4 = div(10, 20)
n5 = mod(35, 20)
say(concat('n1=', n1))
say(concat('n2=', n2))
say(concat('n3=', n3))
say(concat('n4=', n4))
say(concat('n5=', n5))
Output:

n1=30

n2=-10

n3=200

n4=0.5

n5=15

mul

The following table describes the details about this function.
Item Description
Syntax mul(n1, n2)
Description Calculates the product of two numbers.
Parameter
  • n1: the multiplicand.
  • n2: the other multiplicand.
Return value Returns the product of n1 × n2.
Example 
n1 = add(10, 20)
n2 = sub(10, 20)
n3 = mul(10, 20)
n4 = div(10, 20)
n5 = mod(35, 20)
say(concat('n1=', n1))
say(concat('n2=', n2))
say(concat('n3=', n3))
say(concat('n4=', n4))
say(concat('n5=', n5))
Output:

n1=30

n2=-10

n3=200

n4=0.5

n5=15

div

The following table describes the details about this function.
Item Description
Syntax div(n1, n2)
Description Calculates the quotient of two numbers.
Parameter
  • n1: the dividend.
  • n2: the divisor.
Return value Returns the quotient of n1/n2.
Example 
n1 = add(10, 20)
n2 = sub(10, 20)
n3 = mul(10, 20)
n4 = div(10, 20)
n5 = mod(35, 20)
say(concat('n1=', n1))
say(concat('n2=', n2))
say(concat('n3=', n3))
say(concat('n4=', n4))
say(concat('n5=', n5))
Output:

n1=30

n2=-10

n3=200

n4=0.5

n5=15

mod

The following table describes the details about this function.
Item Description
Syntax mod(n1, n2)
Description Calculates the remainder after division of one number by another.
Parameter
  • n1: the dividend.
  • n2: the divisor.
Return value Returns the remainder of n1 % n2.
Example 
n1 = add(10, 20)
n2 = sub(10, 20)
n3 = mul(10, 20)
n4 = div(10, 20)
n5 = mod(35, 20)
say(concat('n1=', n1))
say(concat('n2=', n2))
say(concat('n3=', n3))
say(concat('n4=', n4))
say(concat('n5=', n5))
Output:

n1=30

n2=-10

n3=200

n4=0.5

n5=15

gt

The following table describes the details about this function.
Item Description
Syntax gt(n1, n2)
Description Determines whether a number is greater than another one.
Parameter
  • n1: the number to be compared.
  • n2: the other number to be compared.
Return value If n1 > n2, true is returned. Otherwise, false is returned.
Example 
if and($arg_num, gt(tonumber($arg_num), 10)) {
    say('num > 10')
}                                                                                                                                                                                                      
if and($arg_num, ge(tonumber($arg_num), 10)) {
    say('num >= 10')
}
if and($arg_num, lt(tonumber($arg_num), 10)) {
    say('num < 10')
}                                                                                                                                                                                                       
if and($arg_num, le(tonumber($arg_num), 10)) {
    say('num <= 10')
}
  • Request: /path1/path2/file?num=10 Response: num <= 10 num >= 10
  • Request: /path1/path2/file?num=11 Response: num > 10 num >= 10
  • Request: /path1/path2/file?num=9 Response: num < 10 num <= 10

ge

The following table describes the details about this function.
Item Description
Syntax ge(n1, n2)
Description Determines whether a number is greater than or equal to another one.
Parameter
  • n1: the number to be compared.
  • n2: the other number to be compared.
Return value If n1 >= n2, true is returned. Otherwise, false is returned.
Example 
if and($arg_num, gt(tonumber($arg_num), 10)) {
    say('num > 10')
}                                                                                                                                                                                                      
if and($arg_num, ge(tonumber($arg_num), 10)) {
    say('num >= 10')
}
if and($arg_num, lt(tonumber($arg_num), 10)) {
    say('num < 10')
}                                                                                                                                                                                                       
if and($arg_num, le(tonumber($arg_num), 10)) {
    say('num <= 10')
}
  • Request: /path1/path2/file?num=10 Response: num <= 10 num >= 10
  • Request: /path1/path2/file?num=11 Response: num > 10 num >= 10
  • Request: /path1/path2/file?num=9 Response: num < 10 num <= 10

lt

The following table describes the details about this function.
Item Description
Syntax lt(n1, n2)
Description Determines whether a number is smaller than another one.
Parameter
  • n1: the number to be compared.
  • n2: the other number to be compared.
Return value If n1 < n2, true is returned. Otherwise, false is returned.
Example 
if and($arg_num, gt(tonumber($arg_num), 10)) {
    say('num > 10')
}                                                                                                                                                                                                      
if and($arg_num, ge(tonumber($arg_num), 10)) {
    say('num >= 10')
}
if and($arg_num, lt(tonumber($arg_num), 10)) {
    say('num < 10')
}                                                                                                                                                                                                       
if and($arg_num, le(tonumber($arg_num), 10)) {
    say('num <= 10')
}
  • Request: /path1/path2/file?num=10 Response: num <= 10 num >= 10
  • Request: /path1/path2/file?num=11 Response: num > 10 num >= 10
  • Request: /path1/path2/file?num=9 Response: num < 10 num <= 10

le

The following table describes the details about this function.
Item Description
Syntax le(n1, n2)
Description Determines whether a number is smaller than or equal to another one.
Parameter
  • n1: the number to be compared.
  • n2: the other number to be compared.
Return value if n1 <= n2, true is returned. Otherwise, false is returned.
Example 
if and($arg_num, gt(tonumber($arg_num), 10)) {
    say('num > 10')
}                                                                                                                                                                                                      
if and($arg_num, ge(tonumber($arg_num), 10)) {
    say('num >= 10')
}
if and($arg_num, lt(tonumber($arg_num), 10)) {
    say('num < 10')
}                                                                                                                                                                                                       
if and($arg_num, le(tonumber($arg_num), 10)) {
    say('num <= 10')
}
  • Request: /path1/path2/file?num=10 Response: num <= 10 num >= 10
  • Request: /path1/path2/file?num=11 Response: num > 10 num >= 10
  • Request: /path1/path2/file?num=9 Response: num < 10 num <= 10

floor

The following table describes the details about this function.
Item Description
Syntax floor(n)
Description Generates the greatest integer that is smaller than or equal to a number.
Parameter n: the number to be rounded down.
Return value Returns the greatest integer that is smaller than or equal to the number specified byn.
Example 
if $arg_num {
    say(concat('ceil: ', ceil(tonumber($arg_num))))
    say(concat('floor: ', floor(tonumber($arg_num))))
}

Request: /path1/path2/file?num=9.3 Response: ceil: 10 floor: 9.

ceil

The following table describes the details about this function.
Item Description
Syntax ceil(n)
Description Generates the smallest integer that is greater than or equal to a number.
Parameter n: the number to be rounded up.
Return value Returns the smallest integer that is greater than or equal to the number specified byn.
Example 
if $arg_num {
    say(concat('ceil: ', ceil(tonumber($arg_num))))
    say(concat('floor: ', floor(tonumber($arg_num))))
}

Request: /path1/path2/file?num=9.3 Response: ceil: 10 floor: 9.