Creative professionals are high in demand as the product market for many industries is reaching a saturation point. Employers look for people that have the ability to create stuff out of thin air using their creative skills. One such example that uses trigonometry is digital image processing. All...
三角函数公式大全（Trigfunctionformula）三角函数公式大全（Trig function formula）Induced formula Sin (-a) =-sin (a)Cos (-a) =cos (a)Sin (pi/2-a) =cos (a)Cos (pi/2-a) =sin (a)Sin (pi/2+a) =cos (a)Cos (pi/2+a) =-sin (a)Sin (pi-A) =sin (a)Cos (pi-A) =-cos (...
bessel import BesselBase from sympy import Sum, Product if not isinstance(expr, Basic) or not expr.args: # XXX: temporary hack return expr if not isinstance(expr, (Add, Mul, Pow, ExpBase)): if isinstance(expr, Function) and hasattr(expr, "inverse"): if len(expr.args) == 1 and ...