| Function | Definition |
abs(x) | Returns the absolute value of x. |
asc(a$) | Returns the ASCII code for the first element of a$. |
atan(x) | Returns the arctangent of x. |
cos(x) | Returns the cosine of x. |
erl | Returns the line number of the last error. |
eof(f) | Returns "true" if the file specified by f has reached its end. |
err | Returns the error code of the last error. |
eval(a$) | Evaluates a$. |
exp(x) | Returns ex, where e = 2.7182818 .... |
instr(a$, b$, c) | Returns the starting position of the string a$ within the string b$, starting from the optional c'th position in b$. |
int(x) | Returns the largest integer less than x. |
len(a$) | Returns the length of string a$. |
log(x) | Returns the natural logarithm of x. |
pi | Returns the value of pi. |
posn(f) | Returns the current printing position in the file in the current line in the specified by f. If f is zero, the function returns the printing position of the terminal. |
rnd | Returns a random number. |
sgn(x) | Returns the sign of x. |
sin(x) | Returns the sine of x. |
sqrt(x) | Returns the square root of x. |
tim | Returns the value of the system clock in seconds. |
val(a$) | Returns the value of the number specified by the string a$. |