cat zerofcn2_ex.pro
; zerofcn1_ex.pro
; This an excellent xample
; example of zero function from eve/PV-WAVE
; To run enter: zerofcn1_ex , after setting up "cd , ...
FUNCTION f, x
RETURN, x^2 -1
END

PRO zerofcn2_ex

; initialize the Math Toolkit
MATH_INIT

; Use Zerofcn to find values
zero=ZEROFCN("f",/Double,Xguess=.5)

; Print the zero value
PRINT,'The zero is at ',zero

UNLOAD_OPTION,'math'
END




cat zerofcn1_ex.pro
; zerofcn1_ex.pro
; This an excellent xample
; example of zero function from eve/PV-WAVE
; To run enter: zerofcn1_ex , after setting up "cd , ...
FUNCTION f, x
RETURN, ALOG(x) + x
END

PRO zerofcn1_ex

; initialize the Math Toolkit
MATH_INIT

; Use Zerofcn to find values
zero=ZEROFCN("f",/Double,Xguess=.5)

; Print the zero value
PRINT,'The zero is at ',zero

UNLOAD_OPTION,'math'
END