| Command (1) |
Explanation & Details |
| abs(x: real): real; |
Finds the absolute value of x, which can be real or integer. The result is the same type as x. |
| cos(x: real): real; |
Finds the cosine of x which can be real or integer. x is expressed in radians. The result is always real. |
| dec(var x: integer); |
Decrements the value of x by one. |
| exp(var x: real): real; |
Returns the result of the exponentional function ex. |
| high(x: array of...):integer; |
Returns the upper index limit of the array x.
|
| inc(var x: integer); |
Increments the value of x by one. |
| IsNaN(var x: double): boolean; |
Returns TRUE if the parameter x is not a number (NaN). |
| int(x: real): real; |
Returns the nearest integer below the given real x. No conversion is performed (in contrast to the function trunc). |
| length(x: string/dynamic array): integer; |
Returns the number of characters in a string or the number of elements in an array x. |
| ln(var x: real): real; |
Returns the natural logarithm of x. |
| low(x: array of...):integer; |
Returns the lower index limit of the array x.
|
| nrand(stddev: real): real; |
Returns a normally distributed random number exhibiting a zero mean and a standard deviation specified by the parameter stddev.
|
| pi |
Returns the value of Pi (= 3.14159265....) |
| power(base, expo: real): real |
calculates the power function: result = baseexpo |
| rand(amplitude: real): real; |
Returns a uniformly distributed random number in the range between -amplitude/2 and +amplitude/2. The mean of the random number is zero. |
| round(x: real): integer; |
Finds the nearest integer to the given real x. |
| sin(x: real): real; |
Finds the sine of x, which can be real or integer. x is expressed in radians. The result is always real.
|
| sqr(x: real):real; |
Finds the square of x, which can be real or integer. The result is always real.
|
| sqrt(x: real): real; |
Finds the square root of x, which can be real or integer. The result is always real.
Example: sqrt(myvar) |
| trunc(x: real): integer; |
Finds the nearest integer below the given real x (converts a real to an integer).
|
Programming DataLab 
