Filter
Top Products
402 Functions and commands
mRow Multiplies the row n1 of the matrix A by an expression.
mRow(Expr,Mtrx(A),Intg(n1))
Example:
mRow(12,[[1,2],[3,4],[5,6]],0) gives
[[12,24],[3,4],[5,6]]
mult_c_conjugate If the given complex expression has a complex denominator,
returns the expression after both the numerator and the
denominator have been multiplied by the complex conjugate
of the denominator. If the given complex expression does not
have a complex denominator, returns the expression after
both the numerator and the denominator have been
multiplied by the complex conjugate of the numerator.
mult_c_conjugate(Expr)
Example:
mult_c_conjugate(1/(3+i*2)) gives 1*(3+(-i)*2)/
((3+(i)*2)*(3+(-i)*2))
mult_conjugate Takes an expression in which the numerator or the
denominator contains a square root. If the denominator
contains a square root, returns the expression after both the
numerator and the denominator have been multiplied by the
complex conjugate of the denominator. If the denominator
does not contain a square root, returns the expression after
both the numerator and the denominator have been
multiplied by the complex conjugate of the numerator.
mult_conjugate(Expr)
Example:
mult_conjugate(sqrt(3)-sqrt(2)) gives (sqrt(3)-
(sqrt(2)))*(sqrt(3)+sqrt(2))/
(sqrt(3)+sqrt(2))
nDeriv Returns an approximate value of the derivative of an
expression at a given point, using f’(x)=(f(x+h)–f(x+h))/2*h.
Without a third argument, the value of h is set to 0.001. With
a real as third argument, it is the value of h.
nDeriv(Expr,Var(var),[Real(h)])
Example:
nDeriv(f(x),x,h) gives (f(x+h)-(f(x-h)))*0.5/h
NEG Unary minus. Enters the negative sign.