RE: Extracting the value from Solve

*To*: mathgroup at smc.vnet.net*Subject*: [mg85773] RE: [mg85725] Extracting the value from Solve*From*: "Richard Hofler" <rhofler at bus.ucf.edu>*Date*: Thu, 21 Feb 2008 18:07:07 -0500 (EST)*References*: <200802201156.GAA25463@smc.vnet.net>

Lea, This will give you a list containing one element, the value only. Notice that I add " sol1 =" in order to give me an expression to work with in the second step. In[1]: sol1 = Solve[ Tan[45*Degree]* x + (Sin[ 108.25718805973634]*(-Sqrt[(-0.425185)^2 + 0.843815^2]))/ Sin[135*Degree] == 0, x] In[2]: sol1 = Flatten[sol1 /. {x -> y_} -> {y} ] (* this gives you something that you can use in later steps *) Out[2]: {1.32538} Is this what you want? Richard Richard Hofler -----Original Message----- From: Lea Rebanks [mailto:lrebanks at netvigator.com] Sent: Wednesday, February 20, 2008 6:57 AM To: mathgroup at smc.vnet.net Subject: [mg85773] [mg85725] Extracting the value from Solve Hi All, After evaluating the following . Solve[Tan[45*Degree]*x + (Sin[108.25718805973634]* (-Sqrt[(-0.425185)^2 + 0.843815^2]))/ Sin[135*Degree] == 0, x] {{x -> 1.3253773537632034}} I wish to extract the value only . 1.3253773537632034 Any advice or help gratefully received. Many thanks. Best Regards - Lea Rebanks...

**References**:**Extracting the value from Solve***From:*"Lea Rebanks" <lrebanks@netvigator.com>