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()
asin(x) asin returns the arcsine, in radians, of x.
acosh(x) acosh returns the inverse hyperbolic cosine 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.)
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.
remainder(x, y) Remainder returns the IEEE 754 floating-point remainder of x/y.
tan(x) Tan returns the tangent of the radian argument x.
trunc(x) Trunc returns the integer value of x.
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.
pow10(x) Pow10 returns 10**n, the base-10 exponential of n.
atanh(x) atanh returns the inverse hyperbolic tangent of x.
dim(x, y) Dim returns the maximum of x-y or 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.
sin(x) Sin returns the sine of the radian argument x.
floor(x) Floor returns the greatest integer value less than or equal to x.
hypot(x) Hypot returns Sqrt(p*p + q*q), taking care to avoid
unnecessary overflow and underflow.
J0(x) J0 returns the order-zero Bessel function of the first kind.
log(x) Log returns the natural logarithm of x.
log2(x) Log2 returns the binary logarithm of x.
The special cases are the same as for Log.
logb(x) Logb returns the binary exponent of x.
nextafter(x, y) Nextafter returns the next representable float64 value after x towards y.
sqrt(x) Sqrt returns the square root of x.
asinh(x) asinh returns the inverse hyperbolic sine of x.
copysign(x, y) Copysign returns a value with the magnitude of x and the sign of y.
ldexp(x, y) Ldexp is the inverse of Frexp. It returns frac × 2**exp.
min(x, y) Min returns the smaller of x or y.
round(x) Round returns the nearest integer, rounding half away from zero.
sinh(x) Sinh returns the hyperbolic sine of x.
Y0(x) Y0 returns the order-zero Bessel function of the second kind.
Yn(x, y) Yn returns the order-n Bessel function of the second kind.
cos(x) cos returns the cosin of the radian argument x.
cbrt(x) Cbrt returns the cube root 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.
tanh(x) Tanh returns the hyperbolic tangent of x.
acos(x) acos returns the arccosine, in radians, of x.
atan(x) atan returns the arctangent, in radians, of x.
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.
ceil(x) Ceil returns the least integer value greater than or equal to x.
exp(x) Exp returns e**x, the base-e exponential of x.
exp2(x) Exp2 returns 2**x, the base-2 exponential of x.
inf(x) Inf returns positive infinity if sign >= 0, negative infinity if sign < 0.
J1(x) J1 returns the order-one Bessel function of the first kind.i
abs(x) Abs returns the absolute value of x.
gamma(x) Gamma returns the Gamma function of x.
pow(x, y) Pow returns x**y, the base-x exponential of y.
roundtoeven(x) RoundToEven returns the nearest integer, rounding ties to even.
Y1(x) Y1 returns the order-one Bessel function of the second kind.

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