Mikroelektronika MIKROE-724 データシート
688
mikoBasic PRO for dsPIC30/33 and PIC24
MikroElektronika
exp
Prototype
sub function exp(dim x as float) as float
Description Function returns the value of e — the base of natural logarithms — raised to the power
x
(i.e.
e
x
).
Example
res = exp(0.5) ‘ res = 1.648721
fabs
Prototype
sub function fabs(dim d as float) as float
Description Function returns the absolute (i.e. positive) value of
d
.
Example
res = fabs(-1.3) ‘ res = 1.3
floor
Prototype
sub function floor(dim x as float) as float
Description Function returns the value of parameter x rounded down to the nearest integer.
Example
Example
res = floor(15.258) ‘ res = 15.000000
frexp
Prototype
sub function frexp(dim value as float, dim byref eptr as integer) as float
Description The function splits a floating-point value
value
into a normalized fraction and an integral power of 2.
The return value is a normalized fraction and the integer exponent is stored in the object pointed to by
eptr
.
ldexp
Prototype
sub function ldexp(dim value as float, dim newexp as integer) as float
Description Function returns the result of multiplying the floating-point number
num
by 2 raised to the power
n
(i.e.
returns
x * 2
n
).
Example
res = ldexp(2.5, 2) ‘ res = 10
log
Prototype
sub function log(dim x as float) as float
Description Function returns the natural logarithm of
x
(i.e.
log
e
(x)
).
Example
res = log(10) ‘ res = 2.302585E