mathfunc()

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mathfunc()

Purpose:

mathfunc() Miscellaneous Math Functions

Following is a list of math functions implemented as system PCLs. Except where indicated all results and arguments are 4C floats.

result = pow(x,y);
```
returns x raised to the power of y.
```
result = log(x);
```
returns the natural logarithm of x;
```
result = log10(x);
```
returns the base 10 logarithm of x;
```
result = exp(x);
```
returns the exponential function of x
```

result = ldexp(x,y);

returns x * (2 raised to the y power)
y is an integer

result = sqrt(x);
```
returns the square root of x
```

srand(x)

starts a new sequence of seudo random numbers using x as seed
x is a non negative integer

n = rand();

returns the next psuedo random integer
n is a non negative integer <= 32767

result = sin(x);
```
returns the sine of x
```
result = sinh(x);
```
returns the hyperbolic sine of x
```
result = cos(x);
```
returns the cosine of x
```
result = cosh(x);
```
returns the hyperbolic cosine of x
```
result = tan(x);
```
returns the tangent of x
```
result = tanh(x);
```
returns the hyperbolic tangent of x
```
result = atan(x);
```
returns the arc tangent of x
```

result = atanh(x);

returns the inverse hyperbolic tangent of x

result = acos(x);
```
returns the arc cosine of x
```
result = asin(x);
```
returns the arc sine of x
```

result = atan2(y,x);

returns the arc tangent of the two variables x and y.

result = asinh(x);

returns the inverse hyperbolic sine of x

result = acosh(x);

returns the inverse hyperbolic cosine of x

Where Used:

Any of the above math functions can be called from anywhere in the application.

Bugs/Features/Comments:

All of the above functions are implemented using calls to standard C library routines. 4C type floats are converted to C type double before calling the routine. C type results of double are converted back to 4C type floats. Because of this conversion, precision may be lost since the C type double is less precise than the 4C type of float.