Operators#
Introduction#
The Operators blocks in VEXcode IQ (1st gen) handle mathematical calculations. These blocks allow for performing arithmetic and evaluating conditions. Below is a list of available blocks:
Math – Perform calculations and evaluate numerical conditions.
math operator – Performs addition, subtraction, multiplication, or division.
comparison operator – Compares two values using greater than, less than, or equal operators.
logical operator – Evaluates multiple conditions using and or or.
not operator – Inverts a Boolean value.
range operator – Checks if a number falls within a range.
pick random – Generates a random number within a specified range.
round number – Rounds a number to the nearest whole number.
math functions – Applies operations such as square root, trigonometry, logarithms, and exponentiation.
atan2 – Computes the inverse tangent of y/x.
remainder – Returns the remainder of a division operation.
Math#
math operator#
The math operator block performs basic arithmetic on the values placed on either side. It returns a result based on the project’s print precision, which defaults to 0 decimal places but can be adjusted using the set print precision block.
([0] [math_plus v] [0])
Parameters |
Description |
---|---|
value 1 |
The first number used in the operation. |
operator |
The mathematical operator to use:
|
value 2 |
The second number used in the operation. |
Example
when started :: hat events
[Perform basic addition and show two decimal places.]
set print precision to [0.01 v] on screen
print ([10] [math_plus v] [10.5]) on screen ▶
comparison operator#
The comparison operator block returns a Boolean indicating whether the comparison between two values is true or false.
True
– The comparison is correct (e.g., 5 > 3 returns True).False
– The comparison is incorrect (e.g., 2 ≥ 5 returns False).
<[0] [math_equal v] [0]>
Parameter |
Description |
---|---|
value 1 |
The first value to compare. |
operator |
The comparison to use:
|
value 2 |
The second value to compare. |
Example
when started :: hat events
[Turn right until the heading reaches 90 degrees.]
turn [right v]
wait [0.5] seconds
wait until <(drive heading in degrees) [math_greater_than v] [90]>
stop driving
logical operator#
The logical operator block returns a Boolean indicating whether the logical condition between multiple values is true or false.
True – The logic condition is met.
False – The logic condition is not met.
<<> [and v] <>>
Parameter |
Description |
---|---|
condition 1 |
The first Boolean condition to evaluate. |
operator |
The logical operator to use:
|
condition 2 |
The second Boolean condition to evaluate. |
Example
when started :: hat events
[Display if the up and down buttons are pressed.]
forever
clear screen
set cursor to row [1] column [1] on screen
if <<Brain [up v] button pressed?> [and v] <Brain [down v] button pressed?>> then
print [Buttons pressed!] on screen ▶
end
end
not operator#
The not operator block inverts the result of a Boolean block. If the input is True, it returns False, and if the input is False, it returns True.
True – The input condition would normally return False.
False – The input condition would normally return True.
<not <>>
Parameter |
Description |
---|---|
condition |
The Boolean condition to be inverted. |
Example
when started :: hat events
[Turn until the robot is facing left. ]
forever
if <not <(drive heading in degrees) [math_greater_than v] [270]>> then
turn [right v]
else
stop driving
range operator#
The range operator block returns a Boolean indicating whether a value falls within a specified range.
True – If the value is within the range.
False – If the value is outside the range.
<[0] [math_less_than v] [0] [math_less_than v] [0]>
Parameter |
Description |
---|---|
first operator |
The comparison operator to use:
|
value |
The value to check. |
second operator |
The comparison operator to use:
|
Example
when started :: hat events
[Turn and display when facing forward or back. ]
turn [right v] for [360] degrees ◀ and don't wait
forever
clear screen
set cursor to row [1] column [1] on screen
if <[270] [math_greater_than v] (drive heading in degrees) [math_greater_than v] [90]> then
print [Facing backward!] on screen ▶
else
print [Facing forward!] on screen ▶
pick random#
The pick random block returns a random integer within the specified range.
pick random [1] to [10]
Parameters |
Description |
---|---|
min |
The lowest possible number that can be picked. |
max |
The highest possible number that can be picked. |
Examples
when started :: hat events
[Display a number between 1 and 10.]
print (pick random [1] to [10]) ▶
round number#
The round number block returns the given number rounded to the nearest whole number, following standard rounding rules:
If the decimal is 0.5 or greater, the number rounds up.
If the decimal is less than 0.5, the number rounds down.
(round [0] to [0] decimal places)
Parameter |
Description |
---|---|
number |
The number to round. |
decimal places |
The amount of decimals places to round to. |
Example
when started :: hat events
[Display the rounded result of 10 / 3.]
set print precision to [0.01 v] on screen
print (round ([10] [math_division v] [3]) to [1] decimal places) on screen ▶
math functions#
The math functions block applies a selected mathematical function to a given number and returns the result. It supports operations such as absolute value, rounding, square roots, trigonometric functions, logarithms, and exponentiation.
[abs v] of [0]
Parameter |
Description |
---|---|
function |
The mathematical operation to apply to the input value:
|
number |
The number to apply the function to. |
Example
when started :: hat events
[Display the square root of 16.]
print ([sqrt v] of [16]) on screen ▶
atan2#
The atan2 block returns the inverse tangent of Y/X as an angle in degrees, representing the angle between the positive X-axis and the point (X, Y).
(atan2 of x:[4] y:[3])
Parameter |
Description |
---|---|
x |
The horizontal position of the point, measured from the origin (0,0). |
y |
The vertical position of the point, measured from the origin (0,0). |
Example
when started :: hat events
[Calculate the angle from current position (4, 3).]
print (atan2 of x:[4] y:[3]) on screen ▶
remainder#
The remainder block returns the remainder of the division operation between two values.
(remainder of [0] / [0])
Parameter |
Description |
---|---|
dividend |
The number to be divided. |
divisor |
The number to divide by. |
Example
when started :: hat events
[Display the remainder of 10 / 3.]
print (remainder of [10] / [3]) on screen ▶