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22 lines
713 B
Plaintext
22 lines
713 B
Plaintext
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; Combine 3 simultaneous linear equations with 3 unknowns (x, y, z).
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; Solve for all 3 unknowns using the eliminate, solve, and simplify commands.
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clear all ; restart Mathomatic
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; enter all 3 equations:
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d1=a1*x+b1*y+c1*z
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d2=a2*x+b2*y+c2*z
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d3=a3*x+b3*y+c3*z
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2 ; select equation number 2 as the current equation
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eliminate x ; eliminate variable x from the current equation
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3 ; select equation number 3
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eliminate x y ; eliminate variables x and then y from the current equation
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solve for z
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2 ; select equation number 2
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eliminate z using 3 ; find y by combining equation numbers 2 and 3
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simplify
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1 ; select equation number 1
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eliminate z using 3, y using 2; find x
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simplify all ; simplify and display all solutions
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