Index Expression Functions

cast(e, dt)	Cast an expression from one datatype to another.
remainder(e1, e2)	Return element wise remainder of division.
abs(e1)	Return the element-wise absolute value of the index expression.
pow(e1, e2)	Computes e1**e2 element-wise.
square(e1)	Return the element-wise square value of the index expression.
cube(e1)	Return the element-wise cube value of the index expression.
sqrt(e1)	Return the element-wise sqrt of the index expression.
cube_root(e1)	Return the element-wise cube root of the index expression.
exp(e1)	Calculate the exponential of all elements in an index expression.
log(e1)	Return the element-wise logarithm base e of the index expression.
log10(e1)	Return the element-wise logarithm base 10 of the index expression.
sin(e1)	Return the element-wise sine of the index expression.
cos(e1)	Return the element-wise cosine of the index expression.
tan(e1)	Return the element-wise tangent of the index expression.
asin(e1)	Return the element-wise arcsine of the index expression.
acos(e1)	Return the element-wise arccosine of the index expression.
atan(e1)	Return the element-wise arc tangent of the index expression.
atan2(e1)	Return the element-wise arc tangent of the index expression respecting quadrants.
sinh(e1)	Return the element-wise hyperbolic sine of the index expression.
cosh(e1)	Return the element-wise hyperbolic cosine of the index expression.
tanh(e1)	Return the element-wise hyperbolic tangent of the index expression.
asinh(e1)	Return the element-wise hyperbolic arcsine of the index expression.
acosh(e1)	Return the element-wise hyperbolic arccosine of the index expression.
atanh(e1)	Return the element-wise hyperbolic arc tangent of the index expression.
logical_not(e1)	Return the element-wise logical not of the index expression.
gt(e1, e2)	Computes e1 > e2 element-wise.
lt(e1, e2)	Computes e1 < e2 element-wise.
ge(e1, e2)	Computes e1 >= e2 element-wise.
le(e1, e2)	Computes e1 <= e2 element-wise.
eq(e1, e2)	Computes e1 == e2 element-wise.
ne(e1, e2)	Computes e1 != e2 element-wise.
max(e1, e2)	Computes max(e1, e2) element-wise.
min(e1, e2)	Computes min(e1, e2) element-wise.
heaviside(e1, e2)	Computes element wise heaviside as described in tensor_heaviside().
sum(var, e)	Sums a dimension of an index expression.
add(e1, e2)	Computes e1 + e2 element-wise.
mul(e1, e2)	Computes e1 * e2 element wise.
sub(e1, e2)	Computes e1 - e2 element wise.
div(e1, e2)	Computes e1 / e2 element wise.