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10-Marble
October 7, 2025
Solved

Solve for Theta

  • October 7, 2025
  • 2 replies
  • 372 views

I'm using MathCAD 9.0.0.0. Attached is my program. I need to find theta. Theta should equal 32.6 degrees. How can I get MathCAD to solve for theta?

BB_14100646_0-1759869128216.png

 

Thanks,

      Brent

 

Best answer by Werner_E

As you probably know that the inverse of tan is arctan (in Prime atan) you could use is directly

Werner_E_0-1759872309934.png

 

If you insist that Prime should 'solve' the simple equation, you can use all the methods which I had shown you in the other thread of yours -> Re: Solve variable inside of trig equation?

 

"root" with interval

Werner_E_5-1759872758525.png

"root" with guess value

Werner_E_6-1759872795957.png

solve block with "find"

Werner_E_7-1759872824350.png

and - again not recommended - the symbolic "solve"

Werner_E_8-1759872865153.png

 

Prime 9 sheet attached

 

2 replies

12-Amethyst
October 7, 2025

-------------------------Screenshot_1.png

Werner_E25-Diamond IAnswer
25-Diamond I
October 7, 2025

As you probably know that the inverse of tan is arctan (in Prime atan) you could use is directly

Werner_E_0-1759872309934.png

 

If you insist that Prime should 'solve' the simple equation, you can use all the methods which I had shown you in the other thread of yours -> Re: Solve variable inside of trig equation?

 

"root" with interval

Werner_E_5-1759872758525.png

"root" with guess value

Werner_E_6-1759872795957.png

solve block with "find"

Werner_E_7-1759872824350.png

and - again not recommended - the symbolic "solve"

Werner_E_8-1759872865153.png

 

Prime 9 sheet attached