Some functions ...
plot(sin(-x)*pow(1.5,-r))
plot(pow(2,sin(y))*pow(2,sin(x))/12)
plot(sin(x*y/10)/10)
plot(sin(r)/r)
plot(tanh(x)+tanh(y))/3
plot((1/sqrt(2*pi))*e^(-(r^2)/2))
clear
helpful()
log2(x) Log2 returns the binary logarithm of x.
The special cases are the same as for Log.
atan2(x, y) atan2 returns the arc tangent of y/x, using the signs of the two to
determine the quadrant of the return value.
sinh(x) Sinh returns the hyperbolic sine of x.
tanh(x) Tanh returns the hyperbolic tangent of x.
Y0(x) Y0 returns the order-zero Bessel function of the second kind.
cos(x) cos returns the cosin of the radian argument x.
asinh(x) asinh returns the inverse hyperbolic sine of x.
FMA(x, y, z) FMA returns x * y + z, computed with only one rounding.
(That is, FMA returns the fused multiply-add of x, y, and z.)
round(x) Round returns the nearest integer, rounding half away from zero.
tan(x) Tan returns the tangent of the radian argument x.
acos(x) acos returns the arccosine, in radians, of x.
atan(x) atan returns the arctangent, in radians, of x.
exp2(x) Exp2 returns 2**x, the base-2 exponential of x.
expm1(x) Expm1 returns e**x - 1, the base-e exponential of x minus 1.
It is more accurate than Exp(x) - 1 when x is near zero.
inf(x) Inf returns positive infinity if sign >= 0, negative infinity if sign < 0.
Jn(x, y) Jn returns the order-n Bessel function of the first kind.
log10(x) Log10 returns the decimal logarithm of x.
The special cases are the same as for Log.
max(x, y) Max returns the larger of x or y.
atanh(x) atanh returns the inverse hyperbolic tangent of x.
J0(x) J0 returns the order-zero Bessel function of the first kind.
log(x) Log returns the natural logarithm of x.
log1p(x) Log1p returns the natural logarithm of 1 plus its argument x.
It is more accurate than Log(1 + x) when x is near zero.
mod(x, y) Mod returns the floating-point remainder of x/y.  The magnitude of the
result is less than y and its sign agrees with that of x.
nextafter(x, y) Nextafter returns the next representable float64 value after x towards y.
sin(x) Sin returns the sine of the radian argument x.
sqrt(x) Sqrt returns the square root of x.
dim(x, y) Dim returns the maximum of x-y or 0.
exp(x) Exp returns e**x, the base-e exponential of x.
min(x, y) Min returns the smaller of x or y.
remainder(x, y) Remainder returns the IEEE 754 floating-point remainder of x/y.
trunc(x) Trunc returns the integer value of x.
Yn(x, y) Yn returns the order-n Bessel function of the second kind.
asin(x) asin returns the arcsine, in radians, of x.
ceil(x) Ceil returns the least integer value greater than or equal to x.
floor(x) Floor returns the greatest integer value less than or equal to x.
gamma(x) Gamma returns the Gamma function of x.
J1(x) J1 returns the order-one Bessel function of the first kind.i
pow(x, y) Pow returns x**y, the base-x exponential of y.
pow10(x) Pow10 returns 10**n, the base-10 exponential of n.
Y1(x) Y1 returns the order-one Bessel function of the second kind.
abs(x) Abs returns the absolute value of x.
logb(x) Logb returns the binary exponent of x.
roundtoeven(x) RoundToEven returns the nearest integer, rounding ties to even.
acosh(x) acosh returns the inverse hyperbolic cosine of x.
cbrt(x) Cbrt returns the cube root of x.
copysign(x, y) Copysign returns a value with the magnitude of x and the sign of y.
hypot(x) Hypot returns Sqrt(p*p + q*q), taking care to avoid
unnecessary overflow and underflow.
ldexp(x, y) Ldexp is the inverse of Frexp. It returns frac × 2**exp.

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