
expexpand
Returns an expression with exponentials in expanded form.
expexpand(Expr)
Example:
expexpand(exp(3*x)) gives exp(x)^3
Rewrite – Sine
asinx→acosx
Returns an expression with asin(x) rewritten as π/2– acos(x).
asin2acos(Expr)
Example:
asin2acos(acos(x)+asin(x)) returns π/2
asinx→atanx
Returns an expression with asin(x) rewritten as :
asin2atan(Expr)
Example:
asin2atan(2*asin(x)) returns
sinx→cosx*tanx
Returns an expression with sin(x) rewritten as cos(x)*tan(x).
sin2costan(Expr)
Example:
sin2costan(sin(x)) gives tan(x)*cos(x)
Rewrite – Cosine
acosx→asinx
Returns an expression with acos(x) rewritten as π/2–asin(x).
acos2asin(Expr)
Example:
acos2asin(acos(x)+asin(x)) returns π/2
acosx→atanx
Returns an expression with acos(x) rewritten as :
374 Chapter 22 Functions and commands
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