174d7129-743b-4451-9e1d-f4c25961d2e6 8 4 5 false false 0 7 decimal

&[DATE] &[TIME] - &[FILENAME]

ab1_un 1500 :

f'c'_A_un 16.575 :

d1_un 812.4 :

d2_un 787.2 :

Lf_un 3500 :

davg d1_un d2_un + 2 / : 799.8

Col1 500 :

Pf_un 3000000 :

bf_un 3500 :

Qa 0.67 ab1_un * f'c'_A_un * - d2_un / : 21.16 -

Qb 0.67 - (f'c'_A_un Col1 * * f'c'_A_un ab1_un * davg * d2_un / + : 19707.83

Qc f'c'_A_un Col1 * davg * : 6.63 106^*

Qd 0.5 Pf_un * Lf_un 4 / Col1 4 / - (* : 1.13 109^*

roots Qd Qc Qb Qa 41 mat polyroots : 145.83 - 149.01 i * + 145.83 - 149.01 i * - 122331 mat

Real_root1 10013 mat roots * : 145.83 - 149.01 i * + 11 mat

Real_root2 01013 mat roots * : 145.83 - 149.01 i * - 11 mat

Real_root3 00113 mat roots * : 122311 mat

x f Qa x 3^* Qb x 2^* + Qc x * + Qd + :

x f

x x f x 11001300 solve : 1222.9965

x 1222.99647058803

x Clear 1

x x f x 1200 roots : 1222.9965

x 1222.99647058806

x Clear 1

x f 0 ≡ x 1200 ≡ FindRoot 1222.9965

x 1222.99647058869

x f 0.0251 -

x Clear 1

x g x 1 el f :

guess 80011 mat :

x guess 01015 -^g al_nleqsolve 1 el : 1222.9965

x 1222.99647058806

x f 0.0002