JSL Syntax Reference • JSL Functions • Numeric Functions
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Numeric Functions
Abs(n)
Description
Calculates the absolute value of n.
Returns
Returns a positive number of the same magnitude as the value of n.
Argument
n
Any number.
Ceiling(n)
Description
If n is not an integer, rounds n to the next highest integer.
Returns
Returns the smallest integer greater than or equal to n.
Argument
n
Any number.
Derivative(expr, {name, ...}, ...)
Description
Calculates the derivative of the expr with respect to name.
Returns
Returns the derivative.
Arguments
expr
Any expression. Indirect arguments (for example, Name Expr, Expr, Eval) are supported.
name
Can be a single variable or a list of variables.
Note
Adding an additional variable (derivative(expr, name, name2)) takes the second derivative.
Floor(n)
Description
If n is not an integer, rounds n to the next lowest integer.
Returns
Returns the largest integer less than or equal to n.
Argument
n
Any number.
Examples
Floor(2.7)
2
Floor(–.5)
–1
Invert Expr(expr, name)
Description
Attempts to unfold expr around name.
Mod()
See Modulo(number, divisor)
Modulo(number, divisor)
Mod(number, divisor)
Description
Returns the remainder when number is divided by divisor.
Examples
Modulo(6,5)
1
Normal Integrate(muVector, sigmaMatrix, expr, x, nStrata, nSim)
Description
Returns the result of radial-spherical integration for smooth functions of multivariate, normally distributed variables.
Arguments
muVector
A vector.
sigmaMatrix
A matrix.
expr
An expression in terms of the variable x.
x
The variable used in the expression expr.
nStrata
Number of strata.
nSim
Number of simulations.
Num Deriv(expr)
Description
Returns the first numeric derivative of the expr with respect to the first argument in the expression.
Num Deriv2(expr)
Description
Returns the second numeric derivative of the expr with respect to the first argument in the expression.
Round(n, places)
Description
Rounds n to number of decimal places given.
Simplify Expr(expr(expression))
Simplify Expr(nameExpr(global))
Description
Algebraically simplifies an expression