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fa.h
/* --------------------------------- */ /* save as fa.h */ /* --------------------------------- */ double f( double x, double y) { return( (x*x - 4*x*y) ); } /* --------------------------------- */ char feq[] = "x**2 - 4*x*y"; /* --------------------------------- */ /* --------------------------------- */
fb.h
/* --------------------------------- */ /* save as fb.h */ /* --------------------------------- */ double f( double x, double y) { return( sqrt( x*x + y*y) ); } /* --------------------------------- */ char feq[] = "sqrt(x**2 + y**2)"; /* --------------------------------- */ /* --------------------------------- */
fc.h
/* --------------------------------- */ /* save as fc.h */ /* --------------------------------- */ double f( double x, double y) { return((2*x*x-3*x*y+8*y*y+2*x-4*y+4)); } /* --------------------------------- */ char feq[] = "2*x**2-3*x*y+8*y**2+2*x-4*y+4"; /* --------------------------------- */ /* --------------------------------- */
fd.h
/* --------------------------------- */ /* save as fd.h */ /* --------------------------------- */ double f( double x, double y) { return( (cos(x*y)) ); } /* --------------------------------- */ char feq[] = "cos(x*y)"; /* --------------------------------- */ /* --------------------------------- */
fe.h
/* --------------------------------- */ /* save as fe.h */ /* --------------------------------- */ double f( double x, double y) { return( cos(x)+sin(y) ); } /* --------------------------------- */ char feq[] = "cos(x)+sin(y)"; /* --------------------------------- */ /* --------------------------------- */
ff.h
/* --------------------------------- */ /* save as ff.h */ /* --------------------------------- */ double f( double x, double y, double z) { return( (y*z*z*z-2*x*x) ); } char feq[] = "y*z**3 - 2*x**2"; /* --------------------------------- */ /* --------------------------------- */